Do you have a series of three or more items in your sentence?
Commas To Separate Items In A Series. Commas can be a particularly tricky punctuation mark. A comma is never used as an end mark, and it is read with a shorter pause than an end mark.
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Separate items in a series with commas to clarify meaning and word forms; Use commas to set off all geographical names, items in dates (except the month and day), addresses. Items in a series can be single words or phrases.
A comma is generally used to separate words or groups of words so that the meaning of a sentence is clear.
Use commas to separate items in a series. Separate items in a series l.5.2a punctuation: It can be a style matter. Use a comma near the end of a sentence to separate contrasted coordinate elements or to indicate 9.
