I wish I had a £100 for every time I got a communication with YOUR instead of YOU’RE. I’d be RICH. For example “I appreciate YOUR busy…”, which came in an email this morning. I see this incorrect spelling of YOU’RE everywhere and not just in emails but in places where it shouldn’t be i.e. printed literature and websites. YOU’RE is short for YOU ARE. That’s why there’s the apostrophe; the two words are meshed together. YOUR is the ‘possessive’ i.e. “I appreciate YOU’RE busy because of YOUR heavy workload”. Got it?