• Commas: The first set of rules…

     

      1. Use commas to separate items in a series.

                For example: I like running, swimming, and biking.

                                                    My best friends are Mike, Jane, and Sue.

                                                    I need to dust the countertops, vacuum the carpet, and wash the dishes.

     

    Note: If all items are joined by and or or, do not use commas to separate them.

    For example: I like running and swimming and biking.

                                                  My best friends are Mike and Jane and Sue.

     

    Note: Some words, like bread and butter or law and order—are used in pairs and are considered one item in the series.

    For example: For dinner I had chicken, macaroni and cheese, and green beans.

     

    2. Use commas to separate two or more adjectives before a noun.

                For example: the dirty, dusty book; the warm, sunny day

     

    Tip: Only put a comma between the words if you could reverse their order

                For example: the dusty, dirty book; the sunny, warm day

     

    Note: If the last adjective before the noun is considered part of the noun, omit the comma before that adjective

    For example: the angry, white-haired old lady; the old, green coffee mug

     

    Go here to practice: