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