I must postulate you must postulate she must postulate we must postulate you must postulate they must postulate
V-ing form
I must be postulating you must be postulating she must be postulating we must be postulating you must be postulating they must be postulating
Perfect
I must have postulated you must have postulated she must have postulated we must have postulated you must have postulated they must have postulated
V-ing perfect
I must have been postulating you must have been postulating she must have been postulating we must have been postulating you must have been postulating they must have been postulating
Negation
Simple form
I mustn't postulate you mustn't postulate she mustn't postulate we mustn't postulate you mustn't postulate they mustn't postulate
V-ing form
I mustn't be postulating you mustn't be postulating she mustn't be postulating we mustn't be postulating you mustn't be postulating they mustn't be postulating
Perfect
I mustn't have postulated you mustn't have postulated she mustn't have postulated we mustn't have postulated you mustn't have postulated they mustn't have postulated
V-ing perfect
I mustn't have been postulating you mustn't have been postulating she mustn't have been postulating we mustn't have been postulating you mustn't have been postulating they mustn't have been postulating
Interrogative form
Simple form
must I postulate? must you postulate? must she postulate? must we postulate? must you postulate? must they postulate?
V-ing form
must I be postulating? must you be postulating? must she be postulating? must we be postulating? must you be postulating? must they be postulating?
Perfect
must I have postulated? must you have postulated? must she have postulated? must we have postulated? must you have postulated? must they have postulated?
V-ing perfect
must I have been postulating? must you have been postulating? must she have been postulating? must we have been postulating? must you have been postulating? must they have been postulating?
Interro-negative form
Simple form
mustn't I postulate? mustn't you postulate? mustn't she postulate? mustn't we postulate? mustn't you postulate? mustn't they postulate?
V-ing form
mustn't I be postulating? mustn't you be postulating? mustn't she be postulating? mustn't we be postulating? mustn't you be postulating? mustn't they be postulating?
Perfect
mustn't I have postulated? mustn't you have postulated? mustn't she have postulated? mustn't we have postulated? mustn't you have postulated? mustn't they have postulated?
V-ing perfect
mustn't I have been postulating? mustn't you have been postulating? mustn't she have been postulating? mustn't we have been postulating? mustn't you have been postulating? mustn't they have been postulating?