they haven’t … yet
They haven't come home yet.
They haven't had lunch yet.
They’re not safe yet.
They don't know yet.
Они ещё не умеют завязывать шнурки.
They still don't know how to tie their shoelaces.
И они ещё не начали эксперимент.
And they haven't started the experiment yet.
— Дом странных детей Мисс Перегрин (2016)