Do you have to work on Friday?
Must you work at Friday?
What are you doing now? - I'm having a bath.
Have you been to London? - No, I was never in London.
Have you seen my book? I've put it on the table.
What are you doing on Monday?
She will have been working here for ten years by Thursday.
Have you eaten already? - Yes, I have.
You didn't do it, did you?
Let them do it.
I must go to the doctor.
He is a good teacher.
As far as I'm concerned, I like Johnny Depp.
I like Johnny Depp.
I feel happy.
I am feeling happy.
The house is being built by Jon.
Jon is building a house.