Most people know a little something about the apostrophe. They know the apostrophe’s uses include showing possession. They know it’s also used in something called contractions — not the kind involving birthin’ babies. The kind that involves removing a letter or two from a word or words, like isn’t, we’ve, and they’re. The apostrophe shows where there’s a letter or two gone missin’. It’s helpful to your readers, except if you put it in the wrong place:
I gotta give the writer for Yahoo! Sports’ “Prep Rally” credit for at least tryin’. But the contraction he’s looking for is ’tis — a contraction for it is.