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