I must deplore you must deplore she must deplore we must deplore you must deplore they must deplore
V-ing form
I must be deploring you must be deploring she must be deploring we must be deploring you must be deploring they must be deploring
Perfect
I must have deplored you must have deplored she 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 she 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 she 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 she 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 she 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 she 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 she deplore? must we deplore? must you deplore? must they deplore?
V-ing form
must I be deploring? must you be deploring? must she be deploring? must we be deploring? must you be deploring? must they be deploring?
Perfect
must I have deplored? must you have deplored? must she 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 she 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 she 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 she 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 she 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 she have been deploring? mustn't we have been deploring? mustn't you have been deploring? mustn't they have been deploring?