must perpetrate
Regular verb: perpetrate - perpetrated- perpetrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must perpetrate
you must perpetrate
he must perpetrate
we must perpetrate
you must perpetrate
they must perpetrate 	I must be perpetrating
you must be perpetrating
he must be perpetrating
we must be perpetrating
you must be perpetrating
they must be perpetrating	I must have perpetrated
you must have perpetrated
he must have perpetrated
we must have perpetrated
you must have perpetrated
they must have perpetrated	I must have been perpetrating
you must have been perpetrating
he must have been perpetrating
we must have been perpetrating
you must have been perpetrating
they must have been perpetrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't perpetrate
you mustn't perpetrate
he mustn't perpetrate
we mustn't perpetrate
you mustn't perpetrate
they mustn't perpetrate 	I mustn't be perpetrating
you mustn't be perpetrating
he mustn't be perpetrating
we mustn't be perpetrating
you mustn't be perpetrating
they mustn't be perpetrating	I mustn't have perpetrated
you mustn't have perpetrated
he mustn't have perpetrated
we mustn't have perpetrated
you mustn't have perpetrated
they mustn't have perpetrated	I mustn't have been perpetrating
you mustn't have been perpetrating
he mustn't have been perpetrating
we mustn't have been perpetrating
you mustn't have been perpetrating
they mustn't have been perpetrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I perpetrate?
must you perpetrate?
must he perpetrate?
must we perpetrate?
must you perpetrate?
must they perpetrate? 	must I be perpetrating?
must you be perpetrating?
must he be perpetrating?
must we be perpetrating?
must you be perpetrating?
must they be perpetrating? 	must I have perpetrated?
must you have perpetrated?
must he have perpetrated?
must we have perpetrated?
must you have perpetrated?
must they have perpetrated? 	must I have been perpetrating?
must you have been perpetrating?
must he have been perpetrating?
must we have been perpetrating?
must you have been perpetrating?
must they have been perpetrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I perpetrate?
mustn't you perpetrate?
mustn't he perpetrate?
mustn't we perpetrate?
mustn't you perpetrate?
mustn't they perpetrate? 	mustn't I be perpetrating?
mustn't you be perpetrating?
mustn't he be perpetrating?
mustn't we be perpetrating?
mustn't you be perpetrating?
mustn't they be perpetrating? 	mustn't I have perpetrated?
mustn't you have perpetrated?
mustn't he have perpetrated?
mustn't we have perpetrated?
mustn't you have perpetrated?
mustn't they have perpetrated? 	mustn't I have been perpetrating?
mustn't you have been perpetrating?
mustn't he have been perpetrating?
mustn't we have been perpetrating?
mustn't you have been perpetrating?
mustn't they have been perpetrating?