In the hierarchy of things that frustrate the grammar police, “to” and “too”, and to a certain extent “two”, are somewhere up there. The three words may sound very much alike, but their usage is entirely different, often causing confusion to some people.
Words that share a similar pronunciation are homophones. If you happen to take a look at any list of commonly confused words, you’ll notice plenty of homophones on it, including your / you’re and there / they’re / their. It doesn’t matter whether the homophones have different meanings and uses or if they are in completely different word classes; we still mix them up.
Do you know when to use the right term? Take this quiz to make sure that you are not mixing up your tos, toos, and twos!