Learn when to use them. In a compound sentence, the coordinating conjunctions (for, and, nor, but, or, yet, so) link sentences that might otherwise stand alone together. Ex.- John went to the mall. + Mary followed him to see what he was up to. = John went to the mall, SO Mary followed him to see what he was up to.
However, when there is no subject in the second part of the sentence a comma should not be used. E.g., We went shopping but could not find what we were after.
- A helpful way to remember the coordinating conjunctions is by using the word FANBOYS, which is an mnemonic device put together from the first letter of each of the conjunctions.
- Remember the comma goes before the coordinating conjunction, NOT after.
Ex.-We went to Maine for the summer, for my parents wanted to visit our relatives there.
Article provided by wikiHow, a wiki how-to manual. Please edit this article and find author credits at the original wikiHow article on How to Use a Comma in a Compound Sentence. All content on wikiHow can be shared under a Creative Commons license.