I must move you must move he must move we must move you must move they must move
V-ing form
I must be moving you must be moving he must be moving we must be moving you must be moving they must be moving
Perfect
I must have moved you must have moved he must have moved we must have moved you must have moved they must have moved
V-ing perfect
I must have been moving you must have been moving he must have been moving we must have been moving you must have been moving they must have been moving
Negation
Simple form
I must not move you must not move he must not move we must not move you must not move they must not move
V-ing form
I must not be moving you must not be moving he must not be moving we must not be moving you must not be moving they must not be moving
Perfect
I must not have moved you must not have moved he must not have moved we must not have moved you must not have moved they must not have moved
V-ing perfect
I must not have been moving you must not have been moving he must not have been moving we must not have been moving you must not have been moving they must not have been moving
Interrogative form
Simple form
must I move? must you move? must he move? must we move? must you move? must they move?
V-ing form
must I be moving? must you be moving? must he be moving? must we be moving? must you be moving? must they be moving?
Perfect
must I have moved? must you have moved? must he have moved? must we have moved? must you have moved? must they have moved?
V-ing perfect
must I have been moving? must you have been moving? must he have been moving? must we have been moving? must you have been moving? must they have been moving?
Interro-negative form
Simple form
must I not move? must you not move? must he not move? must we not move? must you not move? must they not move?
V-ing form
must I not be moving? must you not be moving? must he not be moving? must we not be moving? must you not be moving? must they not be moving?
Perfect
must I not have moved? must you not have moved? must he not have moved? must we not have moved? must you not have moved? must they not have moved?
V-ing perfect
must I not have been moving? must you not have been moving? must he not have been moving? must we not have been moving? must you not have been moving? must they not have been moving?