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Essay Checker: Free Online Paper Corrector

Your Best Chance for an A+ Essay. Try Our Free Essay Checker Below.

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Why Should You Use a Free Essay Checker?

The simple answer? Good grammar is necessary, but it’s not easy. You've already done countless hours of research to write the essay. You don’t want to spend countless hours correcting it, too.

You'll get a better grade

Good grammar or its absence can determine if you get a good grade or a failing one. Impress your lecturer not just with how grammatically sound your writing is, but how clear it is and how it flows.

You'll save time

Essay writing can be a long and tedious process. ProWritingAid's essay checker saves you the hassle by acting as the first line of defense against pesky grammar issues.

You'll become a better writer

Essay writing is a particular skill and one that becomes better with practice. Every time you run your essay through ProWritingAid’s essay corrector, you get to see what your common mistakes are and how to fix them.

Good Writing = Good Grades

It’s already hard to know what to write in an essay. Don’t let grammar mistakes hinder your writing and prevent you from getting a good grade. ProWritingAid’s essay checker will help you write your best essay yet. Since the checker is powered by AI, using it means that grammar errors don’t stand a chance. Give your professors something to look forward to reading with clear, concise, and professional writing.

How Does ProWritingAid’s Essay Checker Work?

Your goal in essay writing is to convey your message as best as possible. ProWritingAid's essay checker is the first step towards doing this.

Get Rid of Spelling Errors

ProWritingAid’s essay checker will show you what it thinks are spelling errors and present you with possible corrections. If a word is flagged and it’s actually spelt correctly you can always choose to ignore the suggestion.

Fix Grammar Errors

Professors aren’t fans of poor grammar because it interrupts your message and makes your essay hard to understand. ProWritingAid will run a grammar check on your paper to ensure that your message is precise and is being communicated the way you intended.

Get Rid of Punctuation Mistakes

A missing period or comma here and there may not seem that serious, but you’ll lose marks for punctuation errors. Run ProWritingAid’s paper checker to use the correct punctuation marks every time and elevate your writing.

Improve Readability

Make sure that in the grand scheme your language is not too complicated. The essay checker's built in readability report will show if your essay is easy or hard to read. It specifically zones in on paragraphs that might be difficult to read so you can review them.

What Else Can the Essay Checker Do?

The editing tool analyzes your text and highlights a variety of key writing issues, such as overused words, incohesive sentence structures, punctuation issues, repeated phrases, and inconsistencies.

You don’t need to drown your essay in words just to meet the word count. ProWritingAid’s essay checker will help to make your words more effective. You'll get to construct your arguments and make sure that every word you use builds towards a meaningful conclusion.

Transition words help to organize your ideas by showing the relationship between them. The essay checker has a built in Transition report that highlights and shows the percentage of transitions used in your essay. Use the results to add transitions where necessary.

An engaging essay has sentences of varying lengths. Don’t bore your professor with long, rambling sentences. The essay checker will show you where you need to break long sentences into shorter sentences, or add more sentence length variation.

Generally, in scholarly writing, with its emphasis on precision and clarity, the active voice is preferred. However, the passive voice is acceptable in some instances. When you run your essay through ProWritingAid’s essay checker, you get feedback on whether you 'r e using the passive or active voice to convey your idea.

There are academic specific power verbs like appraise , investigate , debunk , support , etc., that can add more impact to your argument by giving a more positive and confident tone. The essay checker will check your writing for power verbs and notify you if you have less than three throughout your essay.

It's easy to get attached to certain phrases and use them as crutches in your essays but this gives the impression of boring and repetitive writing. The essay checker will highlight your repeats and suggest contextually relevant alternatives.

Gain access to in-house blog reports on citations, how to write a thesis statement, how to write a conclusion, and more. Venture into a world of resources specific to your academic needs.

What Kinds of Papers Does ProWritingAid Correct?

No matter what you’re writing, ProWritingAid will adapt and show you where your edits are needed most.

• Argumentative
• Descriptive
• Textual Analysis
• Lab reports
• Case studies
• Literature reviews
• Presentations
• Dissertations
• Research papers

Professors and students love using ProWritingAid

If you're an English teacher, you need to take a look at this tool - it reinforces what you're teaching, highlights strengths and weaknesses, and makes it easier to personalize instruction.

Jennifer Gonzales

Only reason I managed to get an A in all my freshmen composition classes.

Chris Layton

Great tool for academic work. Easy to use and the reports and summary evaluation of your documents in several categories is very useful. So much more than spelling and grammar!

Debra Callender

Questions & Answers

1. how do i use the essay checker online tool.

You can either copy and paste your essay in the essay checker field or upload your essay from your computer. Your suggestions will show once you enter text. You’ll see a number of possible grammar and spelling issues. Sign up for free to get unlimited suggestions to improve your writing style, grammar, and sentence structure. Avoid unintentional plagiarism with a premium account.

2. Does the essay checker work with British English and American English?

The essay checker works with both British English and American English. Just choose the one you would like to use and your corrections will reflect this.

3. Is using an essay checker cheating?

No. The essay checker won’t ever write the essay for you. It will point out possible edits and advise you on changes you need to make. You have full autonomy and get to decide which changes to accept.

4. Will the essay checker auto-correct my work?

The essay writing power remains in your hands. You choose which suggestions you want to accept and you can ignore those that you don’t think apply.

5. Is there a student discount?

Students who have an eligible student email address can get 20% off ProWritingAid Premium. Email [email protected] from your student email address to access your discount.

6. Does ProWritingAid have a plagiarism checker?

Yes! ProWritingAid’s plagiarism checker will check your work against over a billion web-pages, published works, and academic papers, so you can be sure of its originality. Find out more about pricing for plagiarism checks here .

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Slick Write

Check your grammar in seconds.

Slick Write is a powerful, free application that makes it easy to check your writing for grammar errors, potential stylistic mistakes, and other features of interest. Whether you're a blogger, novelist, SEO professional, or student writing an essay for school, Slick Write can help take your writing to the next level. Curious? See why Slick Write is the best. Try the interactive demo , or check your own document . No software download or installation is required.

Why Slick Write?

The grammar checker is lightning fast

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English is a difficult language, so using correct grammar and diverse vocabulary will set you apart from the crowd. Using good sentence structure and wording improves your content's impact and readability while building your readers' trust. Slick Write goes beyond spell checking to teach you the habits of effective writers. How does your writing rate?

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Using an extension is the easiest way to submit your work to Slick Write. They are available for Chrome and Firefox .

Bust your writer's block, and create new metaphors by playing the word association game . To begin, type a word or phrase in the box below, and hit enter. To quickly find associations for your own text, highlight a word or phrase in it, and use the toolbox popup.

The associator learns contextual word associations from real literature, so it may return offensive results.

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I know what I'm doing. Disable these hints.

• Submission Limit There is a limit of 200,000 characters, which is approximately 30,000 words. Anything longer should be submitted in smaller chunks, or it will be automatically trimmed.
• No document It looks like you forgot to enter your document. Paste it in and try again.
• Structure This tab shows sentence structure within the context of the document. Hover over a sentence to see its word count. Select a word or phrase, or click a sentence to get more information.
• Quotes This tab shows your quotations highlighted as Slick Write sees them.

More information »

• Sentence type flow Pieces with good flow will make use of all four sentence types, varying them to keep the reader interested.
• Sentence length flow Sentence length is indirectly related to sentence type, and is a good indicator of flow. Flow can be altered by adding, removing, lengthening, shortening, combining, or splitting sentences. Long sentences will be indicated by a red line on the graph. Sentences that flow poorly with their surroundings will be orange, and the source of the problem can often be found in a nearby sentence.
• Word length flow Word length is a minor contributor to overall flow, but even minor variations are signs of good rhythm.
• Passive Voice Index This is a measure of how frequently the passive voice is used. Consider revising your document if it scores over 100.
• Prepositional Phrase Index This is a measure of how frequently prepositional phrases are used. Consider revising your document if it scores over 100.
• Average sentence length Sentence length is a major contributor to the level of education required to read a body of text.
• Sentence length standard deviation This is a measure of the amount of variation in the length of a text's sentences. In texts that have broad appeal, this tends to fall between 50 and 90% of the average sentence length. You can increase this number by making long sentences longer, and short ones shorter.
• Sentence deviation to length ratio This is a measure of the sentence variety, and a major contributor to flow. Most novels score between 0.5 and 0.9, and popular ones often score near the high end of the range. You can increase this number by making long sentences longer, and short ones shorter.
• Just the stats preset Use this preset when you're only interested in the stats tab. Critique and Flow will be hidden.
• Honesty preset This preset checks for common indicators of deception, either by lying or omission, and is based on the findings of this study . Areas with high concentrations of these indicators should be viewed with skepticism. Note that the presence or absence of these indicators does not guarantee that a statement is true or false, and that the study was done on spoken communications, so it might be more applicable to interviews and speeches. As always, use your brain.
• Doubled words A word used twice in a row may be a typo.
• Commonly confused words This will check for the internet's most frequently confused words and notify you if it looks like you misused one. It is experimental and probably the least reliable feature. Consult a dictionary when necessary.
• Sentences starting with the same word A word should not be used to start more than one sentence in a single paragraph.
• Misplaced conjunctions It is considered poor style to place coordinating conjunctions at either end of a sentence. Placing a subordinating conjunction at the end of a sentence is against the rules.

It is said that one day, passive voice will bring weakness to your prose.

More information » Even more information »

• Overwriting Words like "very" and "really" make sentences wordier and weaken your message. These can be deleted in almost all cases without affecting the meaning of the sentence.
• Abstract words Abstract words lack specificity and overusing them can make even simple concepts difficult to understand. There are times when abstract words are desirable or even necessary; it would be difficult to write about math or programming without mentioning variables or functions, but you should use more specific terms whenever possible.
• Wordy and redundant phrases These phrases make your writing more difficult to understand. In most cases, they can be replaced with one or two words, or even deleted.
• Legalese These antiquated, arcane words and phrases will make your writing look like a contract.
• Double negatives Double negatives are almost always poor style.
• Adverbs They aren't bad in small quantities, but consider revising your document if more than 5.5% of its words are adverbs. Adverbs ending in "-ly" are considered the worst offenders.
• Adjectives They aren't bad in small quantities. A few of the words on this list can also function as other parts of speech. You have been warned.
• Contractions In formal writing, the use of contractions is considered a fault.

The boxer decked his opponent.

• Profanity Profanity should not be used in formal writing outside of direct quotations.

The critic's scathing review hit the nail on the head .

• Similes Similes and metaphors should be used sparingly. This option will detect most common types of similes.
• "Said" replacements Some people think that these substitutes for "said" are weak or obnoxious, especially if overused.

Her dress was long , and it touched the floor.

Her long dress touched the floor.

• Gender-specific pronouns Avoid using gender-specific pronouns in formal writing when the subject's gender is unknown.
• Weasel words Like abstract words, weasel words and phrases lack specificity. At best, they convey uncertainty. At worst, they can be used to "weasel out" of telling the truth in a straightforward manner. When checking a document that is speculative by nature, you might want to disable this detector.
• Third person pronouns According to this study , high concentrations of third person pronouns may indicate deception.
• Bias language These words and phrases often show the author's bias.
• Uncommon words Uncommon words will increase the document's reading difficulty.

Hot peppers burn my mouth, but I eat them anyway .

Since burritos taste good , I like to eat them.

• Sentence fragments A sentence must have at least one noun and one verb. Anything that does not is a fragment, and if it occurs outside of dialog, it should probably be rewritten.
• Long sentences Long sentences tend to be more difficult to read, making them good candidates for trimming or splitting. Alternatively, parallelism may be used to improve their readability, though this will not decrease the ARI score.
• Success with Style: Using Writing Style to Predict the Success of Novels
• Grammar Girl For your obscure writing questions
• Basic Prose and Style Mechanics An excellent, concise resource
• Television Tropes & Idioms Tricks of the trade
• Writing Realistic Injuries An invaluable article for anyone who writes action or horror
• Online Etymology Dictionary Learn the history of English words
• Scribophile Discuss the finer points of writing with other novelists
• Suggestions from the official See Sharp Press blog Learn about the mistakes that will keep your novel from being published.
• Smashwords Easy ebook distribution for indie authors
• Duotrope Find and learn about publishers
• CreateSpace
• Amazon Kindle Direct Publishing
• Creative Writing Prompts and Exercises Spark your creativity
• RhymeZone A popular rhyming dictionary
• Seventh Sanctum Name generators and more
• Apache OpenOffice The best free office software
• Literature & Latte Makers of the popular Scrivener editor

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Personalized Writing Help When You Need it

Unintentional plagiarism, grammar mistakes, and uncited sources  can turn what you thought was a good paper into a poor one. When you’re writing a paper the last thing you want is for your message to get lost due to incorrect punctuation or confusing sentence structure. You know that the great ideas in your head would make for a standout paper, if only you could get them written clearly on the page. If this struggle sounds familiar, you’re not alone.

Great ideas may be an essential part of high-quality writing, but they’re not the only component. Excellent papers and essays clearly express strong ideas with good grammar, proper punctuation, spot-on spelling, and thorough, careful citations. While this may sound like a lot, your teachers and professors are grading you on your skills as both a writer and a researcher, which means your assignments will require an ethical and attentive approach. Luckily, there is no shortage of available tools to help you along your way.

You could use a plagiarism checker free, though, these tools often lack grammatical support. Given the high stakes and rigorous requirements, the aid of a plagiarism checker without the needed support of a grammar checker could mean the difference between an “A” paper and a “C” or even “D” paper.

Thankfully, the EasyBib Plus plagiarism tool provides all-in-one support to cover all your bases. Our premium essay checker is convenient, easy to use, and includes access to a grammar and spell checker, plus a plagiarism checker. With a single scan, you’ll receive personalized feedback to help identify potentially missing citations and help improve your sentence structure, punctuation, grammar, and more.

Not sure if that noun is spelled correctly, or if the preposition at the end of your sentence is grammatically correct? The EasyBib Plus plagiarism tool is your one-stop shop to help check plagiarism, get grammatical suggestions, correct spelling and punctuation errors, and help create polished papers you can be proud to turn in. And, we haven’t told you the best part yet: you can try our tool free and scan your work for grammar suggestions right now!

Access all the tools today!

A Grammar Check for Peace of Mind

You know that grammar plays a significant role in your assignments. Not only does it factor into your overall grade, but without clear and precise language, your ideas can lose their impact or might even be misunderstood entirely. Still, with so many different parts of speech and rules to learn and apply, it’s not uncommon to get them mixed up and find yourself questioning your knowledge now and again:

Can you use an adverb to modify a noun? (No. You need an adjective for that.)

Well, can you use it to modify a pronoun ? (Still no.)

What do they modify, then? (Almost everything else. Fun, right?)

Ugh. (That was an interjection .)

Does this have to be so difficult? (Nope!)

Scanning your paper with the EasyBib Plus writing tool delivers more than the basic punctuation and spell check functions that come standard in word processing programs. You’ll receive immediate, targeted feedback that can help improve the sentence structure and style of your writing. Not only can this help ensure that you don’t lose points off your grade for grammatical errors such as mismatched verb tense, but it can also help to clarify your meaning and strengthen your arguments by eliminating confusing punctuation and run-on sentences that confuse readers.

Reviewing your work to correct errors and refine the flow of your writing is a critical part of the revision process for novices and novelists alike. Even the most conscientious of wordsmiths might make mistakes, such as using a conjunctive adverb in place of a coordinating conjunction or pairing a plural determiner with an uncountable word. They likely appreciate a subscription-based or free grammar check as much as a beginning writer. That’s why the EasyBib Plus writing tool is designed for all writers, from students who are still learning the fundamentals to published professionals who get paid by the word.

The EasyBib Plus writing tool provides quick, targeted feedback that you can use to help improve your writing immediately. Also, our free resource library is available 24/7, just like the rest of our tools, to help you brush up on the areas that challenge you the most (Conjunctive what? Uncountable who?) That means you can continue to sharpen your skills and improve your writing over time, which will help make finishing your next project easier.

Ready to give your paper a boost? Sign up for EasyBib Plus or scan a paper right now for a free spell check—it’s easy!Just upload or copy and paste your paper to the online grammar check tool and, in a matter of seconds, you’ll be able to receive up to 5 feedback cards so you can begin polishing your draft.

To learn more about proofreading tools, you can find more info here. Or, for more tips on grammar, punctuation, and style, check out this useful reference .

Why is Grammar So Important, Anyway?

Why is grammar important? As long as others know what you mean, does it really matter if you use proper grammar? These are age-old questions, but the answers remain unchanged. Grammar is important for many reasons:

Communication:  Communication is about more than merely listening and talking. We communicate in myriad ways: with our voices, our mannerisms, our facial expressions, our actions, and frequently, our written words. Written communication is just as important as all the other ways we broadcast our thoughts and feelings. Unlike our other communication methods, though, written communication leaves a record. While most of us relax our style when talking to or texting friends, the fact remains that more formal venues require a more formal tone. Proper spelling, grammar, and punctuation are a necessary element of professional and academic writing, so running your work through a spelling and grammar check before you submit it is an absolute must.

Clarity:  Expressing your thoughts, ideas, and opinions is an uphill battle when you communicate them with less-than-stellar punctuation, spelling, and grammar. A missing or misplaced comma, for example, can entirely change your meaning:

• Call me Ishmael = My name is Ishmael.
• Call me, Ishmael = I want Ishmael to call me.

Spelling errors can result in similarly muddled meaning:

• Her shoes perfectly complemented her dress. = Her shoes and dress go well together.
• Her shoes perfectly complimented her dress. = Her shoes can both speak and engage in flattery.

Grammar deficiencies such as a dangling modifier yield similarly confusing results:

• I saw the girl’s purple backpack in the library. = The purple backpack belonging to the girl is in the library; I saw it.
• I saw the purple girl’s backpack in the library. = You know the girl who mysteriously turned purple? I saw her backpack in the library. This week has not been easy on her.

Credibility: Establishing your credibility is critical whether you’re writing for school or business. Proving that you can reliably communicate using proper grammar is essential to establishing and maintaining the trust of your teachers, professors, readers, customers, and colleagues.

To learn even more about the importance of English grammar in writing, check here .

What Happens After I Upload My Paper?

Once you upload a paper, the EasyBib Plus grammar checker scans your text and highlights grammar issues within your document so you can see it in context. For users running a grammar check and spell check using the grammar check free tool, up to the first 5 issues are shown. For subscription subscribers, all of the areas that require your review will be highlighted once the scan is complete.

No matter which version of the tool you’re using, your feedback will include detailed explanations so you can understand why the text was flagged. Other highlighted areas will include examples of how the issues can be fixed. Some will include a detailed explanation as to why the issue was flagged. This personalized feedback allows you to make an educated decision about whether to edit your text or dismiss the suggestion, so you’re always in control of your final draft.

Subscription users also have the plagiarism checker at their disposal when scanning their papers for style and grammar suggestions. Just as with our other writing tools, when you use the tool to check plagiarism, changes are never made without your review, so you are always in the driver’s seat. You can review each highlighted area as well as the sources of matching text and will always be given a choice to either accept or ignore both citation and grammar suggestions.

Whether you are a student or a professional, the EasyBib Plus tools are powerful allies that can help you improve your paper, establish credibility as a writer, and maintain an ethical writing process.

Try our checker free for 3 days to see what you think*. Trust us; you’ll wonder how you got along so far without it!

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Check for Unintentional Plagiarism

Persistent use of the best grammar checker and spell checker you can find will help to shape up the style and substance of your composition. However, to ensure the integrity of your work and root out unintentional instances of academic dishonesty, you’ll also need to incorporate a subscription-based or free plagiarism checker for students.

The ability to scan your paper and check plagiarism and grammar before submitting your work is an invaluable tool for students. It’s so valuable, in fact, that students are not the only ones who consistently use this type of software.

Many teachers and professors use a service to ensure that student papers are original and include properly formatted and sourced citations for all reference materials. For some, this may be a consistent element of their grading process, while others may utilize one only when they feel there is a reason to do so.

What Exactly Does a Plagiarism Checker Do?

If you’ve used an online plagiarism checker before, you may be familiar with the process that these tools employ. For those who have never used one, it can be helpful to understand how these tools work and what you should expect as a result of using one.

The most basic free tools will scan your paper and provide you with a percentage that indicates how much of your work is original. This feature can be useful to a point, as some instructors and institutions set a percentage for the amount of similar text that is considered acceptable. This policy does not mean that they are lenient about academic dishonesty but, instead, that they recognize that similar or even matching word choice is not always an indicator of copying.

However, some schools do not tolerate any form of incremental plagiarism, period. In these institutions, “check paper for plagiarism” is likely a standard action when grading all papers.

With a free plagiarism checker, the percentage of word-for-word plagiarism in your text may be the only feedback you receive. Moreover, some of these providers may wade in unethical waters, and offer essay writing services in conjunction with their checking services. This is why many students and teachers prefer subscription-based checkers that focus on integrity, such as the EasyBib writing tools.

With our premium tools, you get more than just supporting proof that your paper is original and in your own words. Your writing is scanned for potentially matching text and areas that needs your attention is highlighted. We’ll provide you with the source of the matching text so you can review it and decide how to proceed. If you agree that a citation is needed, our citation tools and resources will provide you with the information you need to help format and insert the new sources in your text as well as your works cited page.

How Does the EasyBib Plus Online Plagiarism Checker Work?

The EasyBib Plus writing tool provides an all-in-one spell check, grammar review, and plagiarism checker that not only helps you with the paper you’re writing now but enables you to gain new knowledge and improve your writing for the future, too.

Our essay checker searches online for phrases, sentences, or passages that are similar to those in your paper. If it returns matching text, this may indicate that you have passages that are missing citations.

Just as with many checkers, our tool will tell you how many instances of matching text it finds in your paper. Our plagiarism tool is designed to do more than most free tools, however.

When a portion of your paper is flagged for review, we provide you with the source that it matches. As with our online spell check tool, you have the power to review each area and choose how to proceed. If you decide to cite the flagged text, you can review the suggested source and access our citation tools to help create a proper citation and start building a bibliography for your paper. Or, you may determine that no citation is needed, in which case it’s simple to dismiss the suggestion and continue to the next section.

If you’re unsure about how to proceed, our library of resources can help you learn more and make an educated decision. In this way, you gain more than just the ability to correct your work; over time, you can learn how to avoid plagiarism altogether.

Reasons Your Teacher May Run Your Paper Through a Plagiarism Detector

As stated previously, your teachers and professors grade papers with a fixed process that includes “check paper for plagiarism” as a standard, across-the-board action. Others may check for plagiarism only when they feel there is cause to do so. There are a few red flags that may stand out to them while reviewing a paper that would lead to their running a plagiarism check, including:

Style/Voice:  Most teachers are familiar with the style and voice that you use in your writing. While most will hope that the feedback they provide when grading your work will help you to improve problem areas over time, a paper or essay that has a dramatically different style or voice than the work you’ve previously submitted can be a red flag.

Inconsistency:  Changes in the font, font size, formality, formatting, and more may indicate that portions of a paper have been copied and pasted. If these inconsistent passages are not presented as quotations or don’t include citations, this may further indicate to your teacher that there’s plagiarism in the paper.

Old References:  Part of a well-researched paper is verifying the legitimacy and relevance of your sources. While some older references may be acceptable depending on the topic, if all of your sources are outdated, it may lead your teacher to believe that you’ve recycled your own work or someone else’s.

Looking for a checker to try? With EasyBib Plus you get unlimited checks to give you peace of mind when turning in your papers!

What is Plagiarism?

If you’re looking for a free online plagiarism checker , you’re already aware that it’s not something you want to be found in your papers. However, you may still be wondering: what does plagiarism mean? It’s a reasonable question and one that merits exploring. After all, some of the actions and circumstances that fall within the plagiarism definition come as a surprise to those who only learn that they’ve committed them after it’s too late.

So what is plagiarism? To define plagiarism in the most basic sense, you might say that it is taking someone else’s ideas and words and passing them off as your own.

If your goal is avoiding plagiarism entirely, you’ll need to go beyond the basics to thoroughly define plagiarism, recognize it, and keep clear of it. Some examples of plagiarism that students find surprising include forgotten citations, poor paraphrasing, and re-submitting your own work in whole or in part for more than one assignment. This useful article provides more help in recognizing and understanding the different forms that academic dishonesty can take.

Of course, using your own words and ideas does not count as plagiarism, nor does using common knowledge . Basically, common knowledge is information that is well known by the average person. Examples of common knowledge:

• there are 12 months in a year
• the freezing point of Celsius is zero degrees
• Socrates was a Greek philosopher

So should you only include your original thoughts and common knowledge in your papers? Of course not! Research-based assignments are meant to demonstrate your skills as a researcher, after all, as well as your ability to build upon the work of others to formulate new ideas. To avoid accidentally committing an act that falls within the plagiarism definition when you’re using another person’s words or ideas, though, you need to give them proper credit. This means you’ll need to clearly identify direct quotations or properly paraphrase them when including them in your paper.

Regardless of your approach, you’ll also need to cite your sources according to the style your professor specifies. Generally, you will use MLA format for the arts and humanities and APA format for the sciences, but it’s always best to check with your instructor when you’re unsure.

If you know what style to use but still aren’t sure how to create your citations, don’t fret! Our library of resources includes free guides to help you learn about various styles so you can properly structure and place them. And our premium tools not only help you check grammar, spelling, and originality in your papers, but subscribers also enjoy access to our citation creation tools!

What are the Different Types of Plagiarism?

In addition to the question “what is plagiarism,” you may also be wondering, “why do students plagiarize?” While some students do intentionally plagiarize because they believe they can pass off someone else’s work as their own to avoid spending time on their assignments, many others do so accidentally. They may not understand how broad the plagiarism definition is or they haven’t learned how to research and cite their sources properly. That is why it is vital to recognize plagiarism in all of its forms if you wish to ensure the integrity of your work.

Examples of plagiarism & How to prevent it

Direct plagiarism:

Intentionally copying another person’s work without including a citation that gives credit to the source. When most students are asked to identify potential plagiarism examples and behaviors, this direct and deliberate act is what they think of first.

• Prevention: If you use an idea or quote from another source, cite it in the text. Make it clear that it was not your own words. 

Incremental plagiarism:

Copying parts of another person’s work, such as phrases, sentences, or paragraphs without crediting the source. When deciding which tools to use to check a paper for plagiarism , instructors often seek out those that will identify incremental forms as well as instances of direct copying and similar phrasing.

• Prevention : Decide to either directly quote the phrases or sentences you want to use, or write a good paraphrase. In both cases, be sure to add a citation. Using a plagiarism checker could also help you identify problematic passages.

Self-plagiarism:

Academic self-plagiarism occurs when a student submits the same paper or parts of a paper for more than one assignment. When your instructors are grading your papers, they’re assessing your research and writing skills in the present. When you submit work that you completed in the past, they are both unable to evaluate your current skills and unaware that you haven’t completed the assignment.

• Prevention: Write a new paper for each assignment you’re assigned. If you feel strongly that your past work could enhance your new paper, speak to your instructor and ask for permission first.

Misleading citations:

Including a citation for a quote or idea that misrepresents the source material. This can occur if a student does not understand the reference they are citing; if a student includes a citation for a disreputable source; or the source material simply does not align with the idea or argument that the student has attributed to it.

• Prevention: Carefully review your assignment to understand it. As you research, take the time to evaluate each source notes . Remember, it’s better to have quality citations over an abundance of citations.

Invented sources:

If a reference in a student’s bibliography is found not to exist, it is considered an invented source. This may occur if a student couldn’t find a reputable source to back their argument, or if they needed to include additional references to meet the requirements of the assignment and chose to take an unethical shortcut rather than completing the required amount of research. No matter the reason, this behavior ultimately hurts them in the long run. Not only will they fail to gain the experience they need to conduct research in the future properly, but they’ll also experience significant consequences if they’re caught.

• Prevention: Set aside time to do proper research so you can find enough sources. Start creating a list of sources as you’re researching and take good notes. This will help you keep track of your sources so none are forgotten. If you do end up forgetting where a quote came from, a paper checker could help you pinpoint the original source. 

Patchwriting/Spinning:

Patchwriting is often confused with paraphrasing, but there’s a significant difference. When you paraphrase, you demonstrate that you understand the topic well enough to restate it in your own words. When you patchwrite or spin, it is more akin to a word-swapping game; there’s no need to understand the subject, merely to have access to a thesaurus so you can substitute enough synonyms to mask the source material. This can be intentional, but it may also be a result of having a poor understanding of how to paraphrase.

• Prevention: Using your own words, write down the key points of the phrase or idea, and put them together in a sentence. Be sure to include a citation as well. 

A good way to test if you’re patchwriting or paraphrasing is to remove your sources from view. If you can write about what you’ve read without looking at the source material, you likely understand it well enough to paraphrase it. If you have to review the source material with each new sentence or consult a thesaurus while writing about it (except when you’re adding direct quotations), you may be spinning your sources instead of paraphrasing them.

Academic Integrity Policies and Statements

If you’re still uncertain about what counts as plagiarism, look for your school’s/ organization’s policies on academic integrity and plagiarism. The policies of academic institutions usually cover what is considered plagiarism, the consequences of committing it, and how to avoid it. One great example is Purdue University’s Academic Integrity statement .

What are the Consequences of Plagiarism?

No matter the setting, plagiarism is not taken lightly, and the consequences can be significant. For a good reason, too! Whether in an academic or professional setting, the plagiarism consequences reflect the seriousness of the act, which is ultimately a form of theft that hurts everyone involved.

Just as with the theft of a tangible object, there can be legal punishments for plagiarism. It is, after all, a form of copyright infringement in many instances. A quick search for plagiarism articles will reveal that professional instances of intellectual theft have resulted in civil lawsuits and can even be criminally prosecuted under rare circumstances. In addition to the possible legal consequences, professionals may lose their jobs or have to start over in a new field after their acts of fraud are uncovered.

As a student, you’re likely to wonder what happens if you plagiarize in college or high school. While there will almost always be consequences for this behavior, there is no one-size-fits-all plagiarism sentence. Depending on the circumstances, academic dishonesty could result in outcomes such as:

• You might get a zero for the assignment in which the infringement occurred.
• You may receive a failing grade for the class. If it is a required course, this could leave you without enough credits to move on to the next level until you can repeat it and, in some instances, postpone graduation.
• You may be expelled from your school or university.

The academic dishonesty may be noted on your transcript, which can lead to you not getting into your preferred college, graduate school, or Ph.D. program in the future.

Nobody wants to be known as a fraud or to have a reputation for dishonesty follow them through their career. And, given the consequences that can extend beyond just their reputation, it’s no wonder that professional and academic writers who wish to avoid them take the time to understand the complete definition of plagiarism and run their work through a plagiarism checker before sending it out into the world.

Even the vigilant can fall prey to inferior tools, unfortunately. Before selecting a plagiarism checker, you should understand how they work and what they can (and cannot) detect.

How We Check for Plagiarism

When exploring how to check for plagiarism, most students and professionals conclude that including a checking tool in their revision process is not only helpful but necessary. When you consider the Herculean task of checking each line of your paper against the text of each of your resources, the benefits of a checker are clear. Moreover, this manual approach would only alert you to matching text in the sources you’re aware of, after all, and leaves the sources you haven’t reviewed untouched.

But, hang on. Why would sources you haven’t reviewed factor into your review? The answer to this lies in the plagiarism definition you learned above. What is plagiarism? It’s presenting someone else’s work or ideas as your own, intentionally or otherwise. It is not uncommon to uncover an idea while you’re researching a topic and later misremember it as your own. This might even occur years after you originally came across it.

You might wonder: how can plagiarism be avoided if you have to account for the source of every thought you include in your work? A few exceptions minimize the scope of this. Common knowledge about your topic does not need to be supported by a citation, nor does knowledge that you gained through your personal experience. Using a subscription-based or free plagiarism checker will help you locate any passages that may fall into these categories so you can review them and decide for yourself whether a citation is needed.

EasyBib Plus writing tools provide easy, convenient, and reliable support to help you find potentially missed citations and can help you improve your paper into a high-quality paper with integrity. Simply upload your paper, select the checker, then sit back and relax as the site scans your document. In mere moments, we’ll search the web for passages of similar text and highlight duplicate content for your review.

Regardless of the tools you use to help you revise and polish your work, it’s ultimately your responsibility to ensure that you’re writing and submitting ethical work. That’s why our tools go beyond the basics and require your participation. The tool never automatically makes changes to your paper, but only flags sections that may need your attention and provides you with the matching source so you can to make an educated decision.

If you find that a citation is needed, our citation tools can help you create properly formatted citations and develop a complete bibliography. And, if you review the passage and determine that the match is coincidental, you can dismiss the alert and move on to the next.

Seamless Citation Creation

Professional writers and students alike can find creating citations incredibly confusing. Nevertheless, they are an integral part of a well-written and researched paper and a requirement in almost all academic settings. But, have you ever wondered why they are so important? Citations really do have a purpose—other than driving us crazy— that make it necessary always to cite our sources.

We cite our sources for a few important reasons:

We need to give credit where credit is due. When you use a quote from someone else’s work, you need to give credit for using their words and ideas. Research is often based on the works and ideas of others. However, to include the words and ideas of another without giving them proper credit is to plagiarize, even if the act was unintentional.

In addition, showing that you’ve done proper research by including in text & parenthetical citations and a comprehensive list of sources to back up your arguments gives your work a layer of credibility that can help you earn the trust of your reader or teacher.

Readers can find the sources you used.  When you’re writing high school or undergraduate papers, your only readers may be your instructors and peers. However, including citations at every level of writing helps to ensure that anyone who reads your work can access your sources to check their accuracy, learn more about your topic, and further their own research.

Sources can take your research and learning to the next level, too. When you are conducting research on a topic, checking the works cited or annotated bibliographies prepared by your sources can lead you down new avenues in your research to further develop your ideas and help you write your papers.

Correctly utilizing citations gives strength to your thoughts and opinions. Understanding the value of citations does not, unfortunately, make them any easier to create. We know how confusing it can be, but don’t throw in the towel on learning how to cite websites in MLA , create your APA citation website references, or format your works cited —this is where we come in!

While a free online plagiarism detector may tell you how much of your work is unoriginal and may even identify the passages that meet their plagiarize definition, a premium EasyBib Plus plagiarism checker account also gives you access to our powerful citation resources and generator so you can:

Scan your papers with the plagiarism tool to check for plagiarism-free work before you submit.

Review flagged passages to determine if they meet the plagiarism definition and create unlimited citations in APA format and MLA format for anything fitting the plagiarism meaning. Need more styles ? Check out our regular citation generator for thousands of choices and free resources to help you learn how to create an APA parenthetical citation , APA book citation , APA works cited , and so much more!

Build a full bibliography for your paper right along with your parenthetical or in-text citations, which can save you hours of work along the way compared to manually creating and formatting them.

How Else Do We Help You Improve Your Paper?

The EasyBib Plus plagiarism detector helps you check your content or paper for text that may be missing a citation—which may fall within the definition of plagiarism—to help ensure you don’t accidentally plagiarize. It also includes grammar check and spelling check tools to help identify errors and suggest grammatical tweaks that could help to elevate the level of your writing.

Running a plagiarism check couldn’t be easier! Just upload your paper to the online proofreader, and in a few moments we’ll have your writing and citing suggestions. And, there’s no need to worry about your paper after it’s been scanned.

Run a Grammar and Spell Check for Free!

There’s no denying that your schoolwork can be challenging at times, and your assignments can lead to some late nights even when you’ve started them early. The last thing you want is to submit assignments that don’t reflect your best effort, but it can occasionally be quite the juggling act to get everything done on time.

Why not let our plagiarism checker free up space on your calendar by helping you revise your papers quickly and efficiently? The EasyBib Plus paper checker is your one-stop shop to check for plagiarism, create citations, spot spelling mistakes, and receive feedback on your grammar and style.

When you proofread and do a manual spelling check on work that you’ve written, you’re more likely to overlook mistakes. This is even more likely if you’re pressed for time or trying to complete several different assignments at once. There are tricks to help minimize this, such as reading your work aloud to identify poor grammar or reading each sentence backward to find spelling errors. When time is of the essence, though, these solutions aren’t the most convenient or useful options. That’s why many students seek the assistance of online tools that will run a grammar and plagiarism check on their work.

Are you asking yourself, “ How do I check my grammar online ?” We’ve got the perfect checker for you! Our advanced tools help you find and correct grammar, spelling, and punctuation mistakes. Our targeted feedback and free writing and citing resources help you learn as you go to improve your writing over time.

The best part? You can use our grammar and writing tools any time of the day, any day of the year for! Looking to try it? Just upload or copy and paste your text into our online proofreader for a free grammar check with up to 5 suggestions, or sign up for EasyBib Plus today! EasyBib Plus gives you use of the plagiarism checker and unlimited access to suggestions that can help improve your spelling, sentence structure, punctuation, writing style, and grammar.

Published February 3, 2019. Updated April 9, 2020.

Written and edited by Michele Kirschenbaum and Melissa DeVrieze Meyer . Michele is a school library media specialist and the in-house librarian at EasyBib. You can find her here on Twitter. Melissa is a professional writer and editor based in New Jersey. She writes for academic brands and independent publishers about writing, grammar, and literature, and creates study and curriculum materials for ESL learners. You can find her on Twitter .

Visit our EasyBib Twitter feed to discover more citing tips, fun grammar facts, and the latest product updates.

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Editing and Proofreading

What this handout is about.

This handout provides some tips and strategies for revising your writing. To give you a chance to practice proofreading, we have left seven errors (three spelling errors, two punctuation errors, and two grammatical errors) in the text of this handout. See if you can spot them!

Is editing the same thing as proofreading?

Not exactly. Although many people use the terms interchangeably, editing and proofreading are two different stages of the revision process. Both demand close and careful reading, but they focus on different aspects of the writing and employ different techniques.

Some tips that apply to both editing and proofreading

• Get some distance from the text! It’s hard to edit or proofread a paper that you’ve just finished writing—it’s still to familiar, and you tend to skip over a lot of errors. Put the paper aside for a few hours, days, or weeks. Go for a run. Take a trip to the beach. Clear your head of what you’ve written so you can take a fresh look at the paper and see what is really on the page. Better yet, give the paper to a friend—you can’t get much more distance than that. Someone who is reading the paper for the first time, comes to it with completely fresh eyes.
• Decide which medium lets you proofread most carefully. Some people like to work right at the computer, while others like to sit back with a printed copy that they can mark up as they read.
• Try changing the look of your document. Altering the size, spacing, color, or style of the text may trick your brain into thinking it’s seeing an unfamiliar document, and that can help you get a different perspective on what you’ve written.
• Find a quiet place to work. Don’t try to do your proofreading in front of the TV or while you’re chugging away on the treadmill. Find a place where you can concentrate and avoid distractions.
• If possible, do your editing and proofreading in several short blocks of time. Your concentration may start to wane if you try to proofread the entire text at one time.
• If you’re short on time, you may wish to prioritize. Make sure that you complete the most important editing and proofreading tasks.

Editing is what you begin doing as soon as you finish your first draft. You reread your draft to see, for example, whether the paper is well-organized, the transitions between paragraphs are smooth, and your evidence really backs up your argument. You can edit on several levels:

Have you done everything the assignment requires? Are the claims you make accurate? If it is required to do so, does your paper make an argument? Is the argument complete? Are all of your claims consistent? Have you supported each point with adequate evidence? Is all of the information in your paper relevant to the assignment and/or your overall writing goal? (For additional tips, see our handouts on understanding assignments and developing an argument .)

Overall structure

Does your paper have an appropriate introduction and conclusion? Is your thesis clearly stated in your introduction? Is it clear how each paragraph in the body of your paper is related to your thesis? Are the paragraphs arranged in a logical sequence? Have you made clear transitions between paragraphs? One way to check the structure of your paper is to make a reverse outline of the paper after you have written the first draft. (See our handouts on introductions , conclusions , thesis statements , and transitions .)

Structure within paragraphs

Does each paragraph have a clear topic sentence? Does each paragraph stick to one main idea? Are there any extraneous or missing sentences in any of your paragraphs? (See our handout on paragraph development .)

Have you defined any important terms that might be unclear to your reader? Is the meaning of each sentence clear? (One way to answer this question is to read your paper one sentence at a time, starting at the end and working backwards so that you will not unconsciously fill in content from previous sentences.) Is it clear what each pronoun (he, she, it, they, which, who, this, etc.) refers to? Have you chosen the proper words to express your ideas? Avoid using words you find in the thesaurus that aren’t part of your normal vocabulary; you may misuse them.

Have you used an appropriate tone (formal, informal, persuasive, etc.)? Is your use of gendered language (masculine and feminine pronouns like “he” or “she,” words like “fireman” that contain “man,” and words that some people incorrectly assume apply to only one gender—for example, some people assume “nurse” must refer to a woman) appropriate? Have you varied the length and structure of your sentences? Do you tends to use the passive voice too often? Does your writing contain a lot of unnecessary phrases like “there is,” “there are,” “due to the fact that,” etc.? Do you repeat a strong word (for example, a vivid main verb) unnecessarily? (For tips, see our handouts on style and gender-inclusive language .)

Have you appropriately cited quotes, paraphrases, and ideas you got from sources? Are your citations in the correct format? (See the UNC Libraries citation tutorial for more information.)

As you edit at all of these levels, you will usually make significant revisions to the content and wording of your paper. Keep an eye out for patterns of error; knowing what kinds of problems you tend to have will be helpful, especially if you are editing a large document like a thesis or dissertation. Once you have identified a pattern, you can develop techniques for spotting and correcting future instances of that pattern. For example, if you notice that you often discuss several distinct topics in each paragraph, you can go through your paper and underline the key words in each paragraph, then break the paragraphs up so that each one focuses on just one main idea.

Proofreading

Proofreading is the final stage of the editing process, focusing on surface errors such as misspellings and mistakes in grammar and punctuation. You should proofread only after you have finished all of your other editing revisions.

Why proofread? It’s the content that really matters, right?

Content is important. But like it or not, the way a paper looks affects the way others judge it. When you’ve worked hard to develop and present your ideas, you don’t want careless errors distracting your reader from what you have to say. It’s worth paying attention to the details that help you to make a good impression.

Most people devote only a few minutes to proofreading, hoping to catch any glaring errors that jump out from the page. But a quick and cursory reading, especially after you’ve been working long and hard on a paper, usually misses a lot. It’s better to work with a definite plan that helps you to search systematically for specific kinds of errors.

Sure, this takes a little extra time, but it pays off in the end. If you know that you have an effective way to catch errors when the paper is almost finished, you can worry less about editing while you are writing your first drafts. This makes the entire writing proccess more efficient.

Try to keep the editing and proofreading processes separate. When you are editing an early draft, you don’t want to be bothered with thinking about punctuation, grammar, and spelling. If your worrying about the spelling of a word or the placement of a comma, you’re not focusing on the more important task of developing and connecting ideas.

The proofreading process

You probably already use some of the strategies discussed below. Experiment with different tactics until you find a system that works well for you. The important thing is to make the process systematic and focused so that you catch as many errors as possible in the least amount of time.

• Don’t rely entirely on spelling checkers. These can be useful tools but they are far from foolproof. Spell checkers have a limited dictionary, so some words that show up as misspelled may really just not be in their memory. In addition, spell checkers will not catch misspellings that form another valid word. For example, if you type “your” instead of “you’re,” “to” instead of “too,” or “there” instead of “their,” the spell checker won’t catch the error.
• Grammar checkers can be even more problematic. These programs work with a limited number of rules, so they can’t identify every error and often make mistakes. They also fail to give thorough explanations to help you understand why a sentence should be revised. You may want to use a grammar checker to help you identify potential run-on sentences or too-frequent use of the passive voice, but you need to be able to evaluate the feedback it provides.
• Proofread for only one kind of error at a time. If you try to identify and revise too many things at once, you risk losing focus, and your proofreading will be less effective. It’s easier to catch grammar errors if you aren’t checking punctuation and spelling at the same time. In addition, some of the techniques that work well for spotting one kind of mistake won’t catch others.
• Read slow, and read every word. Try reading out loud , which forces you to say each word and also lets you hear how the words sound together. When you read silently or too quickly, you may skip over errors or make unconscious corrections.
• Separate the text into individual sentences. This is another technique to help you to read every sentence carefully. Simply press the return key after every period so that every line begins a new sentence. Then read each sentence separately, looking for grammar, punctuation, or spelling errors. If you’re working with a printed copy, try using an opaque object like a ruler or a piece of paper to isolate the line you’re working on.
• Circle every punctuation mark. This forces you to look at each one. As you circle, ask yourself if the punctuation is correct.
• Read the paper backwards. This technique is helpful for checking spelling. Start with the last word on the last page and work your way back to the beginning, reading each word separately. Because content, punctuation, and grammar won’t make any sense, your focus will be entirely on the spelling of each word. You can also read backwards sentence by sentence to check grammar; this will help you avoid becoming distracted by content issues.
• Proofreading is a learning process. You’re not just looking for errors that you recognize; you’re also learning to recognize and correct new errors. This is where handbooks and dictionaries come in. Keep the ones you find helpful close at hand as you proofread.
• Ignorance may be bliss, but it won’t make you a better proofreader. You’ll often find things that don’t seem quite right to you, but you may not be quite sure what’s wrong either. A word looks like it might be misspelled, but the spell checker didn’t catch it. You think you need a comma between two words, but you’re not sure why. Should you use “that” instead of “which”? If you’re not sure about something, look it up.
• The proofreading process becomes more efficient as you develop and practice a systematic strategy. You’ll learn to identify the specific areas of your own writing that need careful attention, and knowing that you have a sound method for finding errors will help you to focus more on developing your ideas while you are drafting the paper.

Think you’ve got it?

Then give it a try, if you haven’t already! This handout contains seven errors our proofreader should have caught: three spelling errors, two punctuation errors, and two grammatical errors. Try to find them, and then check a version of this page with the errors marked in red to see if you’re a proofreading star.

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Especially for non-native speakers of English:

Ascher, Allen. 2006. Think About Editing: An ESL Guide for the Harbrace Handbooks . Boston: Wadsworth Cengage Learning.

Lane, Janet, and Ellen Lange. 2012. Writing Clearly: Grammar for Editing , 3rd ed. Boston: Heinle.

For everyone:

Einsohn, Amy. 2011. The Copyeditor’s Handbook: A Guide for Book Publishing and Corporate Communications , 3rd ed. Berkeley: University of California Press.

Lanham, Richard A. 2006. Revising Prose , 5th ed. New York: Pearson Longman.

Tarshis, Barry. 1998. How to Be Your Own Best Editor: The Toolkit for Everyone Who Writes . New York: Three Rivers Press.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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Finding Common Errors

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Here are some common proofreading issues that come up for many writers. For grammatical or spelling errors, try underlining or highlighting words that often trip you up. On a sentence level, take note of which errors you make frequently. Also make note of common sentence errors you have such as run-on sentences, comma splices, or sentence fragments—this will help you proofread more efficiently in the future.

• Do not solely rely on your computer's spell-check—it will not get everything!
• Trace a pencil carefully under each line of text to see words individually.
• Be especially careful of words that have tricky letter combinations, like "ei/ie.”
• Take special care of homonyms like your/you're, to/too/two, and there/their/they're, as spell check will not recognize these as errors.

Left-out and doubled words

Read the paper slowly aloud to make sure you haven't missed or repeated any words. Also, try reading your paper one sentence at a time in reverse—this will enable you to focus on the individual sentences.

Sentence Fragments

Sentence fragments are sections of a sentence that are not grammatically whole sentences. For example, “Ate a sandwich” is a sentence fragment because it lacks a subject.

Make sure each sentence has a subject:

• “Looked at the OWL website.” is a sentence fragment without a subject.
• “The students looked at the OWL website.” Adding the subject “students” makes it a complete sentence.

Make sure each sentence has a complete verb.

• “They trying to improve their writing skills.” is an incomplete sentence because “trying” is an incomplete verb.
• “They were trying to improve their writing skills.” In this sentence, “were” is necessary to make “trying” a complete verb.

See that each sentence has an independent clause. Remember that a dependent clause cannot stand on its own. In the following examples, green highlighting indicates dependent clauses while yellow indicates independent clauses.

• “ Which is why the students read all of the handouts carefully .” This is a dependent clause that needs an independent clause. As of right now, it is a sentence fragment.
• “ Students knew they were going to be tested on the handouts, which is why they read all of the handouts carefully .” The first part of the sentence, “Students knew they were going to be tested,” is an independent clause. Pairing it with a dependent clause makes this example a complete sentence.

Run-on Sentences

• Review each sentence to see whether it contains more than one independent clause.
• If there is more than one independent clause, check to make sure the clauses are separated by the appropriate punctuation.
• Sometimes, it is just as effective (or even more so) to simply break the sentence into two separate sentences instead of including punctuation to separate the clauses.
• Run on: “ I have to write a research paper for my class about extreme sports all I know about the subject is that I'm interested in it. ” These are two independent clauses without any punctuation or conjunctions separating the two.
• Edited version: " I have to write a research paper for my class about extreme sports, and all I know about the subject is that I'm interested in it ." The two highlighted portions are independent clauses. They are connected by the appropriate conjunction “and,” and a comma.
• Another edited version: “ I have to write a research paper for my class about extreme sports. All I know about the subject is that I'm interested in it .” In this case, these two independent clauses are separated into individual sentences separated by a period and capitalization.

Comma Splices

• Look closely at sentences that have commas.
• See if the sentence contains two independent clauses. Independent clauses are complete sentences.
• If there are two independent clauses, they should be connected with a comma and a conjunction (and, but, for, or, so, yet, nor). Commas are not needed for some subordinating conjunctions (because, for, since, while, etc.) because these conjunctions are used to combine dependent and independent clauses.
• Another option is to take out the comma and insert a semicolon instead.
• Comma Splice: “ I would like to write my paper about basketball , it's a topic I can talk about at length .” The highlighted portions are independent clauses. A comma alone is not enough to connect them.
• Edited version: “ I would like to write my paper about basketball because it's a topic I can talk about at length .” Here, the yellow highlighted portion is an independent clause while the green highlighted portion is a dependent clause. The subordinating conjunction “because” connects these two clauses.
• Edited version, using a semicolon: “ I would like to write my paper about basketball ; it’s a topic I can talk about at length .” Here, a semicolon connects two similar independent clauses.

Subject/Verb Agreement

• Find the subject of each sentence.
• Find the verb that goes with the subject.
• The subject and verb should match in number, meaning that if the subject is plural, the verb should be as well.
• An easy way to do this is to underline all subjects. Then, circle or highlight the verbs one at a time and see if they match.
• Incorrect subject verb agreement: “ Students at the university level usually is very busy.” Here, the subject “students” is plural, and the verb “is” is singular, so they don’t match.
• Edited version: “ Students at the university level usually are very busy.” “Are” is a plural verb that matches the plural noun, “students.”

Mixed Construction

Read through your sentences carefully to make sure that they do not start with one sentence structure and shift to another. A sentence that does this is called a mixed construction.

• “ Since I have a lot of work to do is why I can't go out tonight .” Both green highlighted sections of the sentence are dependent clauses. Two dependent clauses do not make a complete sentence.
• Edited version: “ Since I have a lot of work to do , I can't go out tonight .” The green highlighted portion is a dependent clause while the yellow is an independent clause. Thus, this example is a complete sentence.

Parallelism

Look through your paper for series of items, usually separated by commas. Also, make sure these items are in parallel form, meaning they all use a similar form.

• Example: “Being a good friend involves listening , to be considerate, and that you know how to have fun.” In this example, “listening” is in present tense, “to be” is in the infinitive form, and “that you know how to have fun” is a sentence fragment. These items in the series do not match up.
• Edited version: “Being a good friend involves listening , being considerate, and having fun.” In this example, “listening,” “being,” and “having” are all in the present continuous (-ing endings) tense. They are in parallel form.

Pronoun Reference/Agreement

• Skim your paper, searching for pronouns.
• Search for the noun that the pronoun replaces.
• If you can't find any nouns, insert one beforehand or change the pronoun to a noun.
• If you can find a noun, be sure it agrees in number and person with your pronoun.
• “ Sam had three waffles for breakfast. He wasn’t hungry again until lunch.” Here, it is clear that Sam is the “he” referred to in the second sentence. Thus, the singular third person pronoun, “he,” matches with Sam.
• “ Teresa and Ariel walked the dog. The dog bit her .” In this case, it is unclear who the dog bit because the pronoun, “her,” could refer to either Teresa or Ariel.
• “ Teresa and Ariel walked the dog. Later, it bit them .” Here, the third person plural pronoun, “them,” matches the nouns that precede it. It’s clear that the dog bit both people.
• “Teresa and Ariel walked the dog. Teresa unhooked the leash, and the dog bit her .” In these sentences, it is assumed that Teresa is the “her” in the second sentence because her name directly precedes the singular pronoun, “her.”

Apostrophes

• Skim your paper, stopping only at those words which end in "s." If the "s" is used to indicate possession, there should be an apostrophe, as in “Mary's book.”
• Look over the contractions, like “you're” for “you are,” “it's” for “it is,” etc. Each of these should include an apostrophe.
• Remember that apostrophes are not used to make words plural. When making a word plural, only an "s" is added, not an apostrophe and an "s."
• “ It’s a good day for a walk.” This sentence is correct because “it’s” can be replaced with “it is.”
• “A bird nests on that tree. See its eggs?” In this case, “its” is a pronoun describing the noun, “bird.” Because it is a pronoun, no apostrophe is needed.
• “Classes are cancelled today” is a correct sentence whereas “Class’s are cancelled today” is incorrect because the plural form of class simply adds an “-es” to the end of the word.
• “ Sandra’s markers don’t work.” Here, Sandra needs an apostrophe because the noun is a possessive one. The apostrophe tells the reader that Sandra owns the markers.

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