Transposer chacune des phrases suivantes au past perfect.
I have known him for years.
I have worked here for 10 years.
I have read all afternoon.
She has been doing her homework all morning.
We have travelled a lot.
They have been shopping all afternoon.
We have cooked for you all day.
We have been expecting this moment for so long.
He has been married for a long time.
They have been playing video games all night.