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 mustn't move you mustn't move he mustn't move we mustn't move you mustn't move they mustn't move
V-ing form
I mustn't be moving you mustn't be moving he mustn't be moving we mustn't be moving you mustn't be moving they mustn't be moving
Perfect
I mustn't have moved you mustn't have moved he mustn't have moved we mustn't have moved you mustn't have moved they mustn't have moved
V-ing perfect
I mustn't have been moving you mustn't have been moving he mustn't have been moving we mustn't have been moving you mustn't have been moving they mustn't 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
mustn't I move? mustn't you move? mustn't he move? mustn't we move? mustn't you move? mustn't they move?
V-ing form
mustn't I be moving? mustn't you be moving? mustn't he be moving? mustn't we be moving? mustn't you be moving? mustn't they be moving?
Perfect
mustn't I have moved? mustn't you have moved? mustn't he have moved? mustn't we have moved? mustn't you have moved? mustn't they have moved?
V-ing perfect
mustn't I have been moving? mustn't you have been moving? mustn't he have been moving? mustn't we have been moving? mustn't you have been moving? mustn't they have been moving?