I must punch you must punch he must punch we must punch you must punch they must punch
V-ing form
I must be punching you must be punching he must be punching we must be punching you must be punching they must be punching
Perfect
I must have punched you must have punched he must have punched we must have punched you must have punched they must have punched
V-ing perfect
I must have been punching you must have been punching he must have been punching we must have been punching you must have been punching they must have been punching
Negation
Simple form
I must not punch you must not punch he must not punch we must not punch you must not punch they must not punch
V-ing form
I must not be punching you must not be punching he must not be punching we must not be punching you must not be punching they must not be punching
Perfect
I must not have punched you must not have punched he must not have punched we must not have punched you must not have punched they must not have punched
V-ing perfect
I must not have been punching you must not have been punching he must not have been punching we must not have been punching you must not have been punching they must not have been punching
Interrogative form
Simple form
must I punch? must you punch? must he punch? must we punch? must you punch? must they punch?
V-ing form
must I be punching? must you be punching? must he be punching? must we be punching? must you be punching? must they be punching?
Perfect
must I have punched? must you have punched? must he have punched? must we have punched? must you have punched? must they have punched?
V-ing perfect
must I have been punching? must you have been punching? must he have been punching? must we have been punching? must you have been punching? must they have been punching?
Interro-negative form
Simple form
must I not punch? must you not punch? must he not punch? must we not punch? must you not punch? must they not punch?
V-ing form
must I not be punching? must you not be punching? must he not be punching? must we not be punching? must you not be punching? must they not be punching?
Perfect
must I not have punched? must you not have punched? must he not have punched? must we not have punched? must you not have punched? must they not have punched?
V-ing perfect
must I not have been punching? must you not have been punching? must he not have been punching? must we not have been punching? must you not have been punching? must they not have been punching?