of and have

of: preposition; used to indicate distance, origin, contents

have: verb; to possess, to receive, to experience, to hold in mind

"I would of wanted to go, but no one asked me" should be "I would have wanted to go, but no one asked me." 

Think of it this way.. if we were to use a contraction in this sentence, it would become "I would've wanted to go, but no one asked me." Would've = would+ have. Simple stuff, people. Can we please stop using "of" where "have" should be? Please??