I have already done my homework.
I have been doing my homework, when my friend called me.
Have you ever been to Canada?
Where have you been living since you moved to London?
Haven't you seen this film yet?
He hasn't been reading the book when I saw him.
They haven't been living in this hotel till Monday.
Has she been living on an old house since she lost her husband?
She has been learning English since her childhood. .