didn't ... them / hasn't ... them
They didn't laugh at that.
Ça fait un moment qu'on ne les a pas vus.
We haven't seen them in a while.
Si vous parlez des terroristes, on ne les a pas entendus.
If you are talking about the terrorists, we didn't hear them.
— Piège de cristal (1988)
Il ne les a pas crus une seconde.
He didn’t believe them for a second.