How long have they been married?
How long has he been dizzy?
How long have you been a Joy student?
How long has she been a mail carrier?
How long has she been his secretary?
How long have they been absent?
They have been married for 35 years.
She has been his secretary for 4 years.
She has been a mail carrier for 10 days.
I have been a Joy student for 3 minutes.
He has been dizzy for 3 hours.
they have been absent for 30 days.