I must personate you must personate he must personate we must personate you must personate they must personate
V-ing form
I must be personating you must be personating he must be personating we must be personating you must be personating they must be personating
Perfect
I must have personated you must have personated he 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 he 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 he 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 he 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 he 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 he 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 he personate? must we personate? must you personate? must they personate?
V-ing form
must I be personating? must you be personating? must he be personating? must we be personating? must you be personating? must they be personating?
Perfect
must I have personated? must you have personated? must he 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 he 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 he 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 he 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 he 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 he have been personating? mustn't we have been personating? mustn't you have been personating? mustn't they have been personating?