Has just read(Рэд)....
I have just sung a song
we have already have done our HW
The Ch have just gone....
They haven't eatten today yet
You have already moved....
He has just come(Кам) (When)если надо придумать вопрос то вот(When has just he come home)
The Boys haven't travelled all....
We haven't had dinner
The man hasn't bought a new car
Всё!!!