UNIT 6- POETRY English II World Literature Apostrophe -is a punctuation mark. In English, it serves three purposes: • When one omits a letter (contractions like don’t). • To make something possessive (as in the cat’s whiskers). • To make letter plural (as in P's and Q's). . Possession (Compound) – When two people share something, they share an apostrophe. When two people have separate things, they each need their own apostrophe. . , . , . . Cheat Sheet for the Usage of There, Their, and They’re There Naming a place, a thing, or the existence of something Their Showing possession Combining the words “they” and “are” They’re Replace “they’re” with “they are”