must pirate
Regular verb: pirate - pirated- pirated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pirate
you must pirate
he must pirate
we must pirate
you must pirate
they must pirate 	I must be pirating
you must be pirating
he must be pirating
we must be pirating
you must be pirating
they must be pirating	I must have pirated
you must have pirated
he must have pirated
we must have pirated
you must have pirated
they must have pirated	I must have been pirating
you must have been pirating
he must have been pirating
we must have been pirating
you must have been pirating
they must have been pirating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't pirate
you mustn't pirate
he mustn't pirate
we mustn't pirate
you mustn't pirate
they mustn't pirate 	I mustn't be pirating
you mustn't be pirating
he mustn't be pirating
we mustn't be pirating
you mustn't be pirating
they mustn't be pirating	I mustn't have pirated
you mustn't have pirated
he mustn't have pirated
we mustn't have pirated
you mustn't have pirated
they mustn't have pirated	I mustn't have been pirating
you mustn't have been pirating
he mustn't have been pirating
we mustn't have been pirating
you mustn't have been pirating
they mustn't have been pirating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pirate?
must you pirate?
must he pirate?
must we pirate?
must you pirate?
must they pirate? 	must I be pirating?
must you be pirating?
must he be pirating?
must we be pirating?
must you be pirating?
must they be pirating? 	must I have pirated?
must you have pirated?
must he have pirated?
must we have pirated?
must you have pirated?
must they have pirated? 	must I have been pirating?
must you have been pirating?
must he have been pirating?
must we have been pirating?
must you have been pirating?
must they have been pirating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I pirate?
mustn't you pirate?
mustn't he pirate?
mustn't we pirate?
mustn't you pirate?
mustn't they pirate? 	mustn't I be pirating?
mustn't you be pirating?
mustn't he be pirating?
mustn't we be pirating?
mustn't you be pirating?
mustn't they be pirating? 	mustn't I have pirated?
mustn't you have pirated?
mustn't he have pirated?
mustn't we have pirated?
mustn't you have pirated?
mustn't they have pirated? 	mustn't I have been pirating?
mustn't you have been pirating?
mustn't he have been pirating?
mustn't we have been pirating?
mustn't you have been pirating?
mustn't they have been pirating?