Придумайте 2 предложения past perfect ( отрицание , вопрос ) , 2 предложения future perfect ( отрицание , вопрос )

Past :

! - I had not finished my work when he came here.

? - Had you brushed your teeth before you went to bed?

Future :

! - She won’t have been waiting for the bus even for 5 minutes by the time it comes.

? - When I come at 8 am, will you have been sleeping enough?