I must pretend you must pretend she must pretend we must pretend you must pretend they must pretend
V-ing form
I must be pretending you must be pretending she must be pretending we must be pretending you must be pretending they must be pretending
Perfect
I must have pretended you must have pretended she 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 she 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 she 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 she 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 she 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 she 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 she pretend? must we pretend? must you pretend? must they pretend?
V-ing form
must I be pretending? must you be pretending? must she be pretending? must we be pretending? must you be pretending? must they be pretending?
Perfect
must I have pretended? must you have pretended? must she 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 she 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 she 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 she 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 she 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 she have been pretending? mustn't we have been pretending? mustn't you have been pretending? mustn't they have been pretending?