Translation of "flunk" into Swedish

She confessed to protect her classmates because you were threatening to flunk everyone.

Hon ville skydda sina klasskamrater sen du hade hotat att kugga alla.

Where were you when I was flunking freshman physics?

Var var du när jag var körd nybörjare i fysiken?

If you'd gone to my school, you would have flunked eavesdropping.

I min skola hade ni underkänts i tjuvlyssning.