we know who
Wir wissen, wer dich verraten hat.
We know who betrayed you.
— The Wind That Shakes the Barley (2006)
We know who she is.
We know who did it.
Wir können Paddington sagen, dass wir wissen, wer es war.
We can tell Paddington that we know who it was.
— Paddington 2 (2017)
We know who you are.