I must comprise you must comprise he must comprise we must comprise you must comprise they must comprise
V-ing form
I must be comprising you must be comprising he must be comprising we must be comprising you must be comprising they must be comprising
Perfect
I must have comprised you must have comprised he must have comprised we must have comprised you must have comprised they must have comprised
V-ing perfect
I must have been comprising you must have been comprising he must have been comprising we must have been comprising you must have been comprising they must have been comprising
Negation
Simple form
I mustn't comprise you mustn't comprise he mustn't comprise we mustn't comprise you mustn't comprise they mustn't comprise
V-ing form
I mustn't be comprising you mustn't be comprising he mustn't be comprising we mustn't be comprising you mustn't be comprising they mustn't be comprising
Perfect
I mustn't have comprised you mustn't have comprised he mustn't have comprised we mustn't have comprised you mustn't have comprised they mustn't have comprised
V-ing perfect
I mustn't have been comprising you mustn't have been comprising he mustn't have been comprising we mustn't have been comprising you mustn't have been comprising they mustn't have been comprising
Interrogative form
Simple form
must I comprise? must you comprise? must he comprise? must we comprise? must you comprise? must they comprise?
V-ing form
must I be comprising? must you be comprising? must he be comprising? must we be comprising? must you be comprising? must they be comprising?
Perfect
must I have comprised? must you have comprised? must he have comprised? must we have comprised? must you have comprised? must they have comprised?
V-ing perfect
must I have been comprising? must you have been comprising? must he have been comprising? must we have been comprising? must you have been comprising? must they have been comprising?
Interro-negative form
Simple form
mustn't I comprise? mustn't you comprise? mustn't he comprise? mustn't we comprise? mustn't you comprise? mustn't they comprise?
V-ing form
mustn't I be comprising? mustn't you be comprising? mustn't he be comprising? mustn't we be comprising? mustn't you be comprising? mustn't they be comprising?
Perfect
mustn't I have comprised? mustn't you have comprised? mustn't he have comprised? mustn't we have comprised? mustn't you have comprised? mustn't they have comprised?
V-ing perfect
mustn't I have been comprising? mustn't you have been comprising? mustn't he have been comprising? mustn't we have been comprising? mustn't you have been comprising? mustn't they have been comprising?