We use the comma...
To separate words, phrases or clauses in a list.
- She purchased cream, eggs, butter, salt and flour.
- We looked in the basement, under the porch, behind the shed and in the attic.
- Russia won the gold medal, China took home the silver, and Germany came in third place with the bronze.
To link two independent clauses with a coordinating conjunction (and,but, so, or, for, nor, yet)
- He said he was going to win, and I believed him.
- She can speak Japanese fairly well, yet she cannot read a word of it.
After an introductory word, phrase, or clause.
- However, most citizens did not agree with the new policy.
- In my opinion, it was not his best performance.
- Because he had no experience, he did not get the position.
To add a word, phrase or clause into the middle, or at the end, of a sentence.
- Most citizens, however, did not agree with the new policy.
- It was not, in my opinion, his best performance.
- The Maritime Museum of the Atlantic, which is located on the Halifax waterfront, boasts one of the world’s finest collections of artifacts from the Titanic.
To separate information in dates.
- She was born on Friday, June 16, 1983.
To separate information in an address.
- Send a self-addressed envelope to 98 Torwood Street, Moncton, New Brunswick, Canada, E1B 2K5.
With quotation marks.
- “Try again tomorrow,” he suggested.
- “When I give you the signal,” she whispered, “press this button.”

Review - Commas Rules (Part 1)
Shaun explains the rules of commas.

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Review - Commas Rules (Part 1)
Shaun explains the rules of commas.

Review - Commas Rules (Part 2)
Shaun explains the rules of commas.

The media could not be loaded, either because the server or network failed or because the format is not supported.
Review - Commas Rules (Part 2)
Shaun explains the rules of commas.