Grammar Review—Comma Usage

Front

What is a comma?

Back

A comma is a punctuation mark (,) used to indicate a pause between parts of a sentence or to separate items in a list.

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When should you use a comma before a conjunction?

Back

A comma should be used before a conjunction (like 'and', 'but', 'or') when it connects two independent clauses.

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What is an independent clause?

Back

An independent clause is a group of words that can stand alone as a sentence, containing a subject and a verb.

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What is a dependent clause?

Back

A dependent clause is a group of words that cannot stand alone as a sentence and usually begins with a subordinating conjunction.

Front

How do you use commas in a list?

Back

Commas are used to separate items in a list, except for the last item, which is usually preceded by 'and' or 'or'.

Front

What is the Oxford comma?

Back

The Oxford comma is the final comma in a list of items, placed before 'and' or 'or'. Its use is often debated.

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When should you use a comma after an introductory phrase?

Back

A comma should be used after an introductory phrase or clause to separate it from the main clause.

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What is a compound sentence?

Back

A compound sentence is a sentence that contains at least two independent clauses joined by a conjunction.

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How do you punctuate a sentence with a direct address?

Back

Use commas to set off the name or title of a person being directly addressed in a sentence.

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What is a non-essential clause?

Back

A non-essential clause provides additional information but can be removed without changing the meaning of the sentence; it is set off by commas.