ҮЙГЕ! Present Perfect in negative forms I _____ (not clean) my football boots.
They _____ (not start) their meal.
I _____ (not do) my homework.
He _____ (not win) all his matches this year.
My brother and I _____ (not see) any films this week.
It's my birthday party today. I _____ (not invite) many people.
He _____ (not wash) his hands. They're very dirty.
Mum's really angry. We _____ (not tidy) our room!
I can't play with my friends this evening. I _____ (not finish) my homework.
I _____ (not visit) New York for three years.
Where's Alison? We _____ (not see) her since yesterday.
Dad _____ (not take) a holiday since last August.
John _____ (not play) the violin since he was at school​