they speak
Ils parlent de ce qu'ils vont chanter.
They are talking about what they are going to sing.
J'entends à travers le mur de quoi ils parlent.
I can hear what they're talking about through the wall.
Ils parlent un berbère impeccable.
They speak impeccable Berber.
They talk to the policeman.
They speak French.
Je suis sûr qu'ils parlent de nous.
I'm sure they're talking about us.