How do I know when I need to use a comma?: Difference between revisions

1. Put a comma before a coordinating conjunction when it connects two independent clauses.

: Our plane was late, so we ate dinner.

2. Put a comma between items in a series and coordinate adjectives.

: I’m taking math, science, and reading.

: Use the large, red pen.

: She is a sweet little old lady.

3. Put a comma after an introductory expression (word clause, phrase) that does not flow smoothly into the sentence.

: Yes, I have visited New York City.

: Although I like reading, I watched a movie instead.

: For example, dogs might be a better choice than hampsters.

4. Put commas around the name of a person being addressed (direct address).

: Look, Derek, I do not care for your attitude.

: Kim, would you hand me that piano?

: Would you get me a Coke, darling?

5. Put commas around expressions that interrupt the flow of the sentence.

: I think, of course, that she is the best person for the job.

6. Put commas around non-restrictive information, or nonessential information. If the information is removed, it will not change the meaning of the sentence.

7. Use commas with date, addresses, tittles,and numbers.

8. Use commas to set off conjunctive adverbs.   

: Over one million people in Atlanta wanted tickets to the big game.  Their access to the Super Bowl, however, was a chance in a million.