must gazump
Regular verb: gazump - gazumped- gazumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must gazump
you must gazump
he must gazump
we must gazump
you must gazump
they must gazump 	I must be gazumping
you must be gazumping
he must be gazumping
we must be gazumping
you must be gazumping
they must be gazumping	I must have gazumped
you must have gazumped
he must have gazumped
we must have gazumped
you must have gazumped
they must have gazumped	I must have been gazumping
you must have been gazumping
he must have been gazumping
we must have been gazumping
you must have been gazumping
they must have been gazumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't gazump
you mustn't gazump
he mustn't gazump
we mustn't gazump
you mustn't gazump
they mustn't gazump 	I mustn't be gazumping
you mustn't be gazumping
he mustn't be gazumping
we mustn't be gazumping
you mustn't be gazumping
they mustn't be gazumping	I mustn't have gazumped
you mustn't have gazumped
he mustn't have gazumped
we mustn't have gazumped
you mustn't have gazumped
they mustn't have gazumped	I mustn't have been gazumping
you mustn't have been gazumping
he mustn't have been gazumping
we mustn't have been gazumping
you mustn't have been gazumping
they mustn't have been gazumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I gazump?
must you gazump?
must he gazump?
must we gazump?
must you gazump?
must they gazump? 	must I be gazumping?
must you be gazumping?
must he be gazumping?
must we be gazumping?
must you be gazumping?
must they be gazumping? 	must I have gazumped?
must you have gazumped?
must he have gazumped?
must we have gazumped?
must you have gazumped?
must they have gazumped? 	must I have been gazumping?
must you have been gazumping?
must he have been gazumping?
must we have been gazumping?
must you have been gazumping?
must they have been gazumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I gazump?
mustn't you gazump?
mustn't he gazump?
mustn't we gazump?
mustn't you gazump?
mustn't they gazump? 	mustn't I be gazumping?
mustn't you be gazumping?
mustn't he be gazumping?
mustn't we be gazumping?
mustn't you be gazumping?
mustn't they be gazumping? 	mustn't I have gazumped?
mustn't you have gazumped?
mustn't he have gazumped?
mustn't we have gazumped?
mustn't you have gazumped?
mustn't they have gazumped? 	mustn't I have been gazumping?
mustn't you have been gazumping?
mustn't he have been gazumping?
mustn't we have been gazumping?
mustn't you have been gazumping?
mustn't they have been gazumping?