Although the old-fashioned word yore as in "the past" sounds just like those other two, it's less likely to pop up. Jun 16, 2025"your" is a possessive adjective that means "belonging to you" (e.g., "your dog is well behaved"). Keep these distinctions in mind, and you’ll always be able to tell your and you’re apart.
If you’re ever stuck, just remember that the apostrophe indicates the connecting of two words into one to contract.