These words are most often misused and it drives me bonkers. It even happens on professional signs, webpages, TV ads....it's freakin' everywhere!
- its = possession.....no apostrophe EVER
- it's= it is
- their= possession
- there= a place
- they're= they are
- your= possession
- you're=you are
When I was a teacher, I harped on this...but, alas, no one learned!