Many students are confused about the correct use of apostrophes. In their confusion they may use apostrophes without thinking about the rules. Actually, the rules are quite simple. The Raven is one of Edgar Allen Poe s greatest poems.
Students often use apostrophes with plural words.
His other poem s were also very popular. In this example, there is no reason for the apostrophe. This word is plural and shows no ownership. However, remember that plural words sometimes show possession, and then they would have an apostrophe. Here the reader knows that more than one horse had a bridle in the barn.