When you reach the end of a sentence, you need a period, question mark, or exclamation point. Phrases or subordinate clauses standing alone are missing a subject or a verb or are stated in such a way ...

Place a comma before these words only if what comes after could stand alone as a sentence (i.e., is an independent clause): Smith is passionate about making music, and he is encouraging of his band ...

A user on a writers’ message board wants to know about commas. He has written a sentence to the effect of, “The man had shiny black hair and large, twitchy ears,” and now he’s wondering whether that’s ...