*Source: [How To Use An Apostrophe - The Oatmeal](https://theoatmeal.com/comics/apostrophe)* **Is it plural?** *Plural means more than one.* For example: I saw two **kittens** riding a goat. **Goats** are great for transportation. ***Don't*** use an apostrophe. Two exceptions: 1. Is it a single letter word? For example: - **There are two t's in "kittens."** Then it's okay, but you can also do this: - **There are two "t"s in "kittens."** 2. Is it a number or abbreviation? For example: - **90's fashion was a bit awkward. Just say no to hammer pants.** Then do this: - **I attended college in the late '90s and early 2000s.**