could revenge
Regular verb: revenge - revenged- revenged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could revenge
you could revenge
he could revenge
we could revenge
you could revenge
they could revenge 	I could be revenging
you could be revenging
he could be revenging
we could be revenging
you could be revenging
they could be revenging	I could have revenged
you could have revenged
he could have revenged
we could have revenged
you could have revenged
they could have revenged	I could have been revenging
you could have been revenging
he could have been revenging
we could have been revenging
you could have been revenging
they could have been revenging	

Negation 	
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I could not revenge
you could not revenge
he could not revenge
we could not revenge
you could not revenge
they could not revenge 	I could not be revenging
you could not be revenging
he could not be revenging
we could not be revenging
you could not be revenging
they could not be revenging	I could not have revenged
you could not have revenged
he could not have revenged
we could not have revenged
you could not have revenged
they could not have revenged	I could not have been revenging
you could not have been revenging
he could not have been revenging
we could not have been revenging
you could not have been revenging
they could not have been revenging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I revenge?
could you revenge?
could he revenge?
could we revenge?
could you revenge?
could they revenge? 	could I be revenging?
could you be revenging?
could he be revenging?
could we be revenging?
could you be revenging?
could they be revenging? 	could I have revenged?
could you have revenged?
could he have revenged?
could we have revenged?
could you have revenged?
could they have revenged? 	could I have been revenging?
could you have been revenging?
could he have been revenging?
could we have been revenging?
could you have been revenging?
could they have been revenging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not revenge?
could you not revenge?
could he not revenge?
could we not revenge?
could you not revenge?
could they not revenge? 	could I not be revenging?
could you not be revenging?
could he not be revenging?
could we not be revenging?
could you not be revenging?
could they not be revenging? 	could I not have revenged?
could you not have revenged?
could he not have revenged?
could we not have revenged?
could you not have revenged?
could they not have revenged? 	could I not have been revenging?
could you not have been revenging?
could he not have been revenging?
could we not have been revenging?
could you not have been revenging?
could they not have been revenging?