would have vs would of?

SHOULD’VE | WOULD’VE | COULD’VE – Complete Grammar & Use

Would have can never be written “would of.” However, the latter does exist: when the present conditional would is followed by an expression that begins with of. She would, of course, live with me. Past: She would, of course, have lived with me. I ask no more of you than I would of myself.

Would, Would Have, Would Have Had Advanced English Grammar Lesson | | Go Natural English