I must lampoon you must lampoon she must lampoon we must lampoon you must lampoon they must lampoon
V-ing form
I must be lampooning you must be lampooning she must be lampooning we must be lampooning you must be lampooning they must be lampooning
Perfect
I must have lampooned you must have lampooned she 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 she must have been lampooning we must have been lampooning you must have been lampooning they must have been lampooning
Negation
Simple form
I must not lampoon you must not lampoon she must not lampoon we must not lampoon you must not lampoon they must not lampoon
V-ing form
I must not be lampooning you must not be lampooning she must not be lampooning we must not be lampooning you must not be lampooning they must not be lampooning
Perfect
I must not have lampooned you must not have lampooned she must not have lampooned we must not have lampooned you must not have lampooned they must not have lampooned
V-ing perfect
I must not have been lampooning you must not have been lampooning she must not have been lampooning we must not have been lampooning you must not have been lampooning they must not have been lampooning
Interrogative form
Simple form
must I lampoon? must you lampoon? must she lampoon? must we lampoon? must you lampoon? must they lampoon?
V-ing form
must I be lampooning? must you be lampooning? must she be lampooning? must we be lampooning? must you be lampooning? must they be lampooning?
Perfect
must I have lampooned? must you have lampooned? must she 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 she have been lampooning? must we have been lampooning? must you have been lampooning? must they have been lampooning?
Interro-negative form
Simple form
must I not lampoon? must you not lampoon? must she not lampoon? must we not lampoon? must you not lampoon? must they not lampoon?
V-ing form
must I not be lampooning? must you not be lampooning? must she not be lampooning? must we not be lampooning? must you not be lampooning? must they not be lampooning?
Perfect
must I not have lampooned? must you not have lampooned? must she not have lampooned? must we not have lampooned? must you not have lampooned? must they not have lampooned?
V-ing perfect
must I not have been lampooning? must you not have been lampooning? must she not have been lampooning? must we not have been lampooning? must you not have been lampooning? must they not have been lampooning?