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 must not lampoon
you must not lampoon
he must not lampoon
we must not lampoon
you must not lampoon
they must not lampoon 	I must not be lampooning
you must not be lampooning
he must not be lampooning
we must not be lampooning
you must not be lampooning
they must not be lampooning	I must not have lampooned
you must not have lampooned
he must not have lampooned
we must not have lampooned
you must not have lampooned
they must not have lampooned	I must not have been lampooning
you must not have been lampooning
he 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 	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 	
must I not lampoon?
must you not lampoon?
must he not lampoon?
must we not lampoon?
must you not lampoon?
must they not lampoon? 	must I not be lampooning?
must you not be lampooning?
must he not be lampooning?
must we not be lampooning?
must you not be lampooning?
must they not be lampooning? 	must I not have lampooned?
must you not have lampooned?
must he not have lampooned?
must we not have lampooned?
must you not have lampooned?
must they not have lampooned? 	must I not have been lampooning?
must you not have been lampooning?
must he not have been lampooning?
must we not have been lampooning?
must you not have been lampooning?
must they not have been lampooning?