how did f-22 get shot down over iran?

There is no verified evidence that an F-22 was shot down over Iran. The posts and videos making that claim appear to be sensational, unconfirmed content rather than confirmed reporting.

What the available material shows

The strongest items I found are YouTube videos and opinion-style pieces claiming an F-22 was lost or engaged over Iran, but they do not provide independent confirmation from major news outlets or official U.S. statements. One result is an older, well-documented story about an F-22 flying under Iranian F-4s undetected, which is real but describes the F-22 demonstrating stealth, not being shot down.

Bottom line

So the short answer is: it likely did not happen. The “F-22 shot down over Iran” story looks like a rumor or fabricated viral claim, not a confirmed incident.

If you want, I can also help you separate the real Iran-F-22 incidents from the fake ones.