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