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