As you decide whether a sentence needs a comma or not, watch for these words that begin subordinate (or dependent) clauses.  Double-check Comma Camp for the rules themselves

Subordinate clauses will often begin with subordinating conjunctions, which are words that link dependent clauses to independent clauses, such as for, as, since, therefore, hence, consequently, though, due to, provided that, because, unless, once, while, when, whenever, where, wherever, before, and after.

They can also begin with relative pronouns such as that, which, who, whom, whichever, whoever, whomever, and whose. Spotting these words can tip you off that you are dealing with a subordinate clause rather than a main clause.

adapted from Grammarly.com

Last modified: Wednesday, 20 November 2019, 11:08 AM