must lampoon
Regular verb: lampoon - lampooned- lampooned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lampoon
you must lampoon
he must lampoon
we must lampoon
you must lampoon
they must lampoon 	I must be lampooning
you must be lampooning
he must be lampooning
we must be lampooning
you must be lampooning
they must be lampooning	I must have lampooned
you must have lampooned
he must have lampooned
we must have lampooned
you must have lampooned
they must have lampooned	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 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't lampoon
you mustn't lampoon
he mustn't lampoon
we mustn't lampoon
you mustn't lampoon
they mustn't lampoon 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
must I lampoon?
must you lampoon?
must he lampoon?
must we lampoon?
must you lampoon?
must they lampoon? 	must I be lampooning?
must you be lampooning?
must he be lampooning?
must we be lampooning?
must you be lampooning?
must they be lampooning? 	must I have lampooned?
must you have lampooned?
must he have lampooned?
must we have lampooned?
must you have lampooned?
must they have lampooned? 	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 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I lampoon?
mustn't you lampoon?
mustn't he lampoon?
mustn't we lampoon?
mustn't you lampoon?
mustn't they lampoon? 	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? 	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? 	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?