Hi, Under what condition is the preposition "include" preceded by a comma? 1. It will cost you $65 including sales tax.[ref.] (No comma.) 2. All on the plane were alive, including the pilot. 3. Dwight Yoakam treated his fans to some of his classics, including "I Sand Dixie," at the festival. Do I have to place a comma before "including" in sentence 3? Until now, I've always put a comma when using the word "including," but now I wonder if there's any rule. Thank you.