could perpetrate
Regular verb: perpetrate - perpetrated- perpetrated

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

Negation 	
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I could not perpetrate
you could not perpetrate
he could not perpetrate
we could not perpetrate
you could not perpetrate
they could not perpetrate 	I could not be perpetrating
you could not be perpetrating
he could not be perpetrating
we could not be perpetrating
you could not be perpetrating
they could not be perpetrating	I could not have perpetrated
you could not have perpetrated
he could not have perpetrated
we could not have perpetrated
you could not have perpetrated
they could not have perpetrated	I could not have been perpetrating
you could not have been perpetrating
he could not have been perpetrating
we could not have been perpetrating
you could not have been perpetrating
they could not have been perpetrating	

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

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