Use a comma to separate two independent clauses when they are joined by one of seven coordinating conjunctions (for, and, nor, but, or, yet, so). We were out of ice cream, so I went to the store. (c) ...

Only Slate Plus members can gift Slate stories. Become a member to share 10 free articles a month. There’s no denying that commas are helpful little flecks of punctuation. They allow us to separate ...