I must state you must state he must state we must state you must state they must state
V-ing form
I must be stating you must be stating he must be stating we must be stating you must be stating they must be stating
Perfect
I must have stated you must have stated he must have stated we must have stated you must have stated they must have stated
V-ing perfect
I must have been stating you must have been stating he must have been stating we must have been stating you must have been stating they must have been stating
Negation
Simple form
I must not state you must not state he must not state we must not state you must not state they must not state
V-ing form
I must not be stating you must not be stating he must not be stating we must not be stating you must not be stating they must not be stating
Perfect
I must not have stated you must not have stated he must not have stated we must not have stated you must not have stated they must not have stated
V-ing perfect
I must not have been stating you must not have been stating he must not have been stating we must not have been stating you must not have been stating they must not have been stating
Interrogative form
Simple form
must I state? must you state? must he state? must we state? must you state? must they state?
V-ing form
must I be stating? must you be stating? must he be stating? must we be stating? must you be stating? must they be stating?
Perfect
must I have stated? must you have stated? must he have stated? must we have stated? must you have stated? must they have stated?
V-ing perfect
must I have been stating? must you have been stating? must he have been stating? must we have been stating? must you have been stating? must they have been stating?
Interro-negative form
Simple form
must I not state? must you not state? must he not state? must we not state? must you not state? must they not state?
V-ing form
must I not be stating? must you not be stating? must he not be stating? must we not be stating? must you not be stating? must they not be stating?
Perfect
must I not have stated? must you not have stated? must he not have stated? must we not have stated? must you not have stated? must they not have stated?
V-ing perfect
must I not have been stating? must you not have been stating? must he not have been stating? must we not have been stating? must you not have been stating? must they not have been stating?