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Last Updated: March 17, 2024 Fact Checked
This article was co-authored by Michelle Golden, PhD . Michelle Golden is an English teacher in Athens, Georgia. She received her MA in Language Arts Teacher Education in 2008 and received her PhD in English from Georgia State University in 2015. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 71,613 times.
Punctuating titles can be tricky, especially because different types of titles require different notations and typography. Depending on the type of title, you may need to capitalize the title, underline the title, or use quotation marks around the title to ensure it is punctuated properly. You may also be creating a title for an original work written by you, citing it in a text, or a published work written by someone else, citing it as a reference in your bibliography. Depending on the expectations of your professor or teacher, you may also be required to use the more common MLA style or the less common APA style.
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Commas are used to split up different parts of a sentence, and when used correctly they bring clarity and flow to your writing. They’re probably the most common piece of punctuation in English, which means that they’re often the most misused.
This article takes you through the most important comma rules and the most common mistakes in academic writing .
Additionally the project was delayed. | Additionally, the project was delayed. | |
Matilda who was unloved by her family escaped from reality by reading. | Matilda, who was unloved by her family, escaped from reality by reading. | |
Starfish aren’t fish so that’s a . | Starfish aren’t fish, so that’s a misnomer. |
This , is underdeveloped. | This protagonist is underdeveloped. | |
A stack of pancakes, and of coffee make for a delicious breakfast. | A stack of pancakes and a lot of coffee make for a delicious breakfast. | |
We distributed questionnaires, and conducted interviews. | We distributed questionnaires and conducted interviews. | |
Profits fell, the company collapsed. | Profits fell; the company collapsed. |
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Commas to introduce a sentence, dependent vs. independent clauses, commas in compound sentences, avoid the comma splice, restrictive vs. nonrestrictive clauses, avoid splitting subjects from verbs, avoid splitting compound subjects or objects, avoid splitting compound predicates, oxford commas.
If you introduce a sentence with a transition word (e.g., however, hence, indeed, furthermore), follow it with a comma.
With longer introductory phrases that set the stage for the main part of the sentence, it’s generally best to use a comma, especially if the phrase is more than 3–4 words long.
Use the best grammar checker available to check your comma placement quickly and easily.
A clause is a group of words that contains at least a subject and a verb . Sentences are often made up of several clauses. Whether you should put a comma (or some other form of punctuation) between them depends on the types of clauses and the relationship between them.
An independent clause is a clause that could stand on its own as a full sentence. A dependent clause , in contrast, does not express a complete thought. It depends on another clause to form a full sentence.
When a dependent clause comes at the start of a sentence, it should be followed by a comma.
When a dependent clause comes after an independent clause, a comma is often not necessary, especially if it adds information that is essential to the meaning of the independent clause.
A compound sentence contains more than one independent clause. The clauses can be joined by a semicolon , a colon , or a coordinating conjunction (for, and, nor, but, or, yet, so).
When two independent clauses are connected by a coordinating conjunction , always use a comma before the conjunction.
In these examples, the parts before and after the conjunction could both stand as full sentences on their own. Therefore, the comma before so and the comma before and are required.
Two independent clauses should never be joined by a comma alone. This error is called a comma splice .
In each of the examples above, the two parts of the sentence separated by the comma could stand as full sentences by themselves. This means they are independent clauses.
To avoid the comma splice, you can split the two clauses into separate sentences, connect them with another form of punctuation (i.e., a colon , semicolon or dash ), or connect them with a conjunction . The table below shows how each approach produces slightly different results.
Model 1 was selected, it returns more accurate results. | Model 1 was selected. It returns more accurate results. | Model 1 was selected: it returns more accurate results. | Model 1 was selected as it returns more accurate results. |
The project ran over the deadline, data processing was extensive. | The project ran over the deadline. Data processing was extensive. | The project ran over the deadline – data processing was extensive. | The project ran over the deadline because data processing was extensive. |
He did not take the easy way out, he is a man of principle. | He did not take the easy way out. He is a man of principle. | He did not take the easy way out; he is a man of principle. | He did not take the easy way out, because he is a man of principle. |
Sometimes the extra information added by a dependent clause is essential to the meaning of the main clause. This is called a restrictive clause because it restricts the meaning of the sentence. Commas should not be used around a restrictive clause.
The information in the sentences is about a specific type of bear—those that have young cubs. If the restrictive clause was removed, the core meaning of the sentence would change: it would say instead that all bears can be dangerous.
In contrast, a nonrestrictive clause adds extra information that isn’t required to understand the main point of the sentence. Instead of restricting the meaning, it expands on the meaning. A nonrestrictive clause should be set off from the main clause with commas.
The information in this sentence is about bears in general, and the nonrestrictive clause adds extra information. If the comma before which was removed, the core meaning of the sentence would stay the same: that bears can be dangerous.
Clauses that begin with “that” are always restrictive. In American English , “which” always begins a nonrestrictive clause (so should always be set off with commas). In British English , “which” can be used for both restrictive and nonrestrictive clauses.
The table below shows how the same clause can be restrictive or nonrestrictive, subtly changing the meaning of the sentence.
Restrictive clause (no commas) | Nonrestrictive clause (with commas) | |
---|---|---|
The five students who had studied for weeks passed the test. | The five students, who had studied for weeks, passed the test. | |
There were more students, but only five had studied for weeks and passed the test. | There were five students who all studied for weeks and passed the test. | |
Only the cake that she ate was poisoned. | Only the cake, which she ate, was poisoned. | |
There were other cakes, but only the specific cake she ate was poisoned. | There was just one cake, among other things, and only the cake was poisoned. | |
I made friends with the neighbour who is loquacious. | I made friends with the neighbour, who is loquacious. | |
I have several neighbours, but I specifically made friends with the one who is . | The neighbour I made friends with happens to be loquacious. |
To avoid comma mistakes , pay attention to the function of different words in your sentences and their relation to each other. A comma should generally not come between a verb (the action word) and its subject (the person or thing doing the action).
Watch out for this error in particular when the sentence contains modifiers that might distract you from the connection between subject and verb.
Sometimes subjects are separated from verbs by nonrestrictive clauses, words like “however”, or other interruptions. These should always be enclosed within two commas.
When two subjects or objects are connected to one verb , make sure not to separate them with a comma.
The “plants” and the “insects” are both subjects of the verb “to be”, so no comma should come between them.
The “medicine” and the “tracking journal” are both objects of the verb “to give”, so no comma should come between them.
The predicate is the part of a sentence that contains the verb . A compound predicate occurs when two verbs in a sentence are connected to the same subject . In general, a comma should not be used between the verbs.
Pay attention to this rule especially when the predicate contains other words and phrases (e.g., modifiers that give more information about the verb).
In this example, the cat does two things: “scamper” and “leap”. Because both are connected to the same subject (“the small cat”), no comma should separate them.
There are occasional exceptions to this rule: for example, when a comma is necessary for clarity, or when you want to emphasize a contrast between two verbs.
In the third version of the sentence, the conjunction “but” is intended to emphasize the contrast between the verbs “provided” and “refused”, so a comma before but is acceptable (though not necessary).
In lists, commas are used to separate each item, and the last item is separated by a conjunction (e.g., and, or). A comma before the conjunction, known as the serial comma or Oxford comma , is optional. Whether or not you choose to use it, make sure to be consistent.
Examples of Latin phrases that have been used in English for hundreds of years are ad nauseam, , and mea culpa. | Examples of Latin phrases that have been used in English for hundreds of years are , vice versa and . |
Dogs, cats, and tortoises have been known to act strangely before major seismic events. | Dogs, cats and tortoises have been known to act strangely before major seismic events. |
Sometimes a serial comma is necessary for clarity. One example is when the final list item itself contains a conjunction.
Using the serial comma here clarifies that the final item, “business and leisure”, is a single category. Without the serial comma, the list is confusing.
Another example is when items at the end of the list could be read as describing an earlier item.
Here the serial comma clarifies that “two dogs”, “Jane”, and “Louis” are separate items. Without the serial comma, the sentence seems to say that he had to take care of two dogs named Jane and Louis.
Other students also liked, using semicolons (;) | guide, rules & examples.
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COMMENTS
In a previous Ask the MLA post, we explained how to incorporate titles ending in question marks or exclamation points into works-cited-list entries. But how do you incorporate such titles into your prose? How do you handle titles ending in other punctuation marks? And what should you do about other matters of punctuation related to titles?
Have you ever wondered if it's acceptable to include commas in academic writing titles? Find out the essential tips to ensure your titles are grammatically correct and effective. From punctuation rules to stylistic considerations, this article covers it all.
Learn how to come up with effective, clear, and concise essay titles using our guide with examples of different types of essay titles.
If a comma is placed after a name or title, it is because it is placed in such a manner that it is being used as part of an introductory phrase or clause. This is a comma rule separate from the rules of commas with names and titles and refers to proper grammatical punctuation.
If you remove the phrase, the meaning is the same: Life after Life won several book awards. But in the example below, no commas are used around the by phrases because the authors' names are needed to distinguish works with the same title: I am reading Life after Life by Jill McCorkle, not Life after Life by Kate Atkinson.
I've recently received a handful of questions asking for clarification about rule governing the use of commas with names and titles. Of all the comma rules tested on the SAT® and ACT®, this is probably the subtlest.
The correct way to use commas with names and titles We use commas while combining multiple phrases in one sentence or writing about different items in a list.
In truth, commas around names and titles are used for a very particular reason, namely to indicate that the name or title is not essential to the meaning of a sentence. In most cases, it is fairly straightforward to figure out when commas are needed: you simply cross out the name or title and check whether the remaining sentence make ...
Commas should sometimes be placed before - and after - names and titles. It all depends on the context. Let's start with the fact that unless a name or title is the last word (s) in a sentence, it can either be used with no commas at all, OR with a comma both before and after. It is incorrect to place only one comma before the name or title.
Punctuation in MLA titles Use the same punctuation as appears in the source title. However, if there is a subtitle, separate it from the main title with a colon and a space, even if different (or no) punctuation is used in the source.
Use commas to set off all geographical names, items in dates (except the month and day), addresses (except the street number and name), and titles in names. Use a comma to shift between the main discourse and a quotation. Use commas wherever necessary to prevent possible confusion or misreading.
Even professional writers struggle with commas. In theory, everyone knows what a comma is—it's a pause between parts of a sentence. In practice, though, it can be difficult to figure out where commas actually belong. Here's a quick, user-friendly guide to help you master the comma in your everyday writing.
Should commas be used with book titles? The answer is, sometimes. In fact, there is nothing about a book title that requires a comma with it just because it is a book title. However, depending on how the book title is used in a sentence, it may need a comma or two.
Be sure never to add an extra comma between the final adjective and the noun itself or to use commas with noncoordinate adjectives. Example: The big, hairy monster glared down at me. Use commas to set off all geographical names, items in dates (except the month and day), addresses (except the street number and name), and titles in names.
The grammar rules for commas with names and titles is quite easy. Here are two easy rules to remember to get your punctuation right.
How to Capitalize and Punctuate Titles Give the full title, including any subtitle, exactly as it is listed in the source, except follow these capitalization and punctuation rules (p. 130).
In an academic essay, you can use highly technical terms in your title, but generally avoid terms that the average well-read person in your discipline might not know. In any writing that has a broad audience, titles need to avoid language that is too sophisticated; a news article, for example, should be easily understood by all.
Punctuating titles can be tricky, especially because different types of titles require different notations and typography. Depending on the type of title, you may need to capitalize the title, underline the title, or use quotation marks...
Commas in Titles. Rule - Use commas to set off the name or title of a person directly addressed. Examples: Will you, Aisha, do that assignment for me? Yes, Doctor, I will. NOTE: Capitalize a title when directly addressing someone. Joshua, please remember to buy lettuce. Please remember to buy lettuce, Joshua.
Yes." (Note that it does use punctuation, to let us know that it is asking a question.) First, it tells us what we will be discussing the internet and its effect on intelligence and education ...
When to Use a Comma (,) | Guide, Rules & Examples Commas are used to split up different parts of a sentence, and when used correctly they bring clarity and flow to your writing. They're probably the most common piece of punctuation in English, which means that they're often the most misused.
What is a comma? While a period ends a sentence, a comma indicates a smaller break. Some writers think of a comma as a soft pause—a punctuation mark that separates words, clauses, or ideas within a sentence. Here's a tip: Want to make sure your writing shines? Grammarly can check your spelling and save you from grammar and punctuation mistakes.
Titles and Section Headings. The title of a complete work is usually centred near the top of the first page; if possible, it should be printed either in large letters or in boldface, or even in both. It should not be italicized or placed in quotation marks, and it should not have a full stop at the end. Any punctuation or italics which are ...