he/it isn't yet, he hasn't ... yet
Il n'est pas encore mort; on l'apporte ici.
He isn't dead yet; they're bringing him here.
Il n'est pas encore trop tard pour le lui dire.
It's not too late to tell him/her yet.
Mais je m'étonne, il n'est pas encore là.
But I'm surprised he's not here yet.
— The Magnificent One (1973)
It's not time yet.
He hasn't come yet.
Il n'est pas encore allé en France, et a très envie d'y aller l'année prochaine.
He hasn't been to France yet, and he really wants to go there next year.
Eh bien, il n'est pas encore parti ?
Well, he hasn't left yet?