Punctuation with parentheses isn’t always straightforward. For example, should you place a comma before or after the brackets? Or should you use any at all? Fortunately, we’ve put together a quick guide to help you out.
Parentheses are the round brackets you place around parenthetical information in a sentence: ( ). Parenthetical information is additional information added to a sentence without disrupting the flow or meaning. For example:
Here, the sentence would be fine on its own, but the parentheses let us add an extra bit of context without changing anything.
The information within the brackets should come right after the part of the sentence that it pertains to. If that part of the sentence is followed with a comma, then the comma goes after the closing bracket. For example:
Generally, commas are used after parentheses when:
● The parentheses are part of the introductory statement (meaning the first part of the sentence is introducing the next part):
● The parentheses are in the first of two independent clauses connected by a coordinating conjunction (for, and, nor, but, or, yet, and so):
● The parentheses are part of a dependent clause in the middle of a sentence, which is offset by commas:
First of all, commas never come before parentheses. And if the sentence doesn’t need a comma at all, then you don’t need to place one after the parentheses either:
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If you’re unsure whether to use one, try writing the sentence without the parentheses. If it doesn’t have a comma, then you don’t need to add one.
Should there ever be a comma (or any other punctuation) inside parentheses? Sometimes! Think of the parenthetical information as its own clause. If any punctuation is part of that clause, then it should be added. This includes ending punctuation:
Even if the parenthetical thought is a complete sentence, though, you should never add a period to the end of it. And a comma should never go at the end. The only time you would add commas inside parentheses is if they’re somewhere in the middle of the clause, like in a list:
In summary:
If you’d like an expert editor to check your work for grammar, punctuation, spelling, word choice, and more, send a copy our way! We’ll even proofread the first 500 words for free.
You do not need to use a comma with parentheses unless it’s already part of the sentence.
You can express parenthetical information using dashes, commas, or parentheses, depending on what flows best.
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