must perforate
Regular verb: perforate - perforated- perforated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must perforate
you must perforate
he must perforate
we must perforate
you must perforate
they must perforate 	I must be perforating
you must be perforating
he must be perforating
we must be perforating
you must be perforating
they must be perforating	I must have perforated
you must have perforated
he must have perforated
we must have perforated
you must have perforated
they must have perforated	I must have been perforating
you must have been perforating
he must have been perforating
we must have been perforating
you must have been perforating
they must have been perforating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not perforate
you must not perforate
he must not perforate
we must not perforate
you must not perforate
they must not perforate 	I must not be perforating
you must not be perforating
he must not be perforating
we must not be perforating
you must not be perforating
they must not be perforating	I must not have perforated
you must not have perforated
he must not have perforated
we must not have perforated
you must not have perforated
they must not have perforated	I must not have been perforating
you must not have been perforating
he must not have been perforating
we must not have been perforating
you must not have been perforating
they must not have been perforating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I perforate?
must you perforate?
must he perforate?
must we perforate?
must you perforate?
must they perforate? 	must I be perforating?
must you be perforating?
must he be perforating?
must we be perforating?
must you be perforating?
must they be perforating? 	must I have perforated?
must you have perforated?
must he have perforated?
must we have perforated?
must you have perforated?
must they have perforated? 	must I have been perforating?
must you have been perforating?
must he have been perforating?
must we have been perforating?
must you have been perforating?
must they have been perforating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not perforate?
must you not perforate?
must he not perforate?
must we not perforate?
must you not perforate?
must they not perforate? 	must I not be perforating?
must you not be perforating?
must he not be perforating?
must we not be perforating?
must you not be perforating?
must they not be perforating? 	must I not have perforated?
must you not have perforated?
must he not have perforated?
must we not have perforated?
must you not have perforated?
must they not have perforated? 	must I not have been perforating?
must you not have been perforating?
must he not have been perforating?
must we not have been perforating?
must you not have been perforating?
must they not have been perforating?