could counterpetition
Regular verb: counterpetition - counterpetitioned- counterpetitioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could counterpetition
you could counterpetition
she could counterpetition
we could counterpetition
you could counterpetition
they could counterpetition 	I could be counterpetitioning
you could be counterpetitioning
she could be counterpetitioning
we could be counterpetitioning
you could be counterpetitioning
they could be counterpetitioning	I could have counterpetitioned
you could have counterpetitioned
she could have counterpetitioned
we could have counterpetitioned
you could have counterpetitioned
they could have counterpetitioned	I could have been counterpetitioning
you could have been counterpetitioning
she could have been counterpetitioning
we could have been counterpetitioning
you could have been counterpetitioning
they could have been counterpetitioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not counterpetition
you could not counterpetition
she could not counterpetition
we could not counterpetition
you could not counterpetition
they could not counterpetition 	I could not be counterpetitioning
you could not be counterpetitioning
she could not be counterpetitioning
we could not be counterpetitioning
you could not be counterpetitioning
they could not be counterpetitioning	I could not have counterpetitioned
you could not have counterpetitioned
she could not have counterpetitioned
we could not have counterpetitioned
you could not have counterpetitioned
they could not have counterpetitioned	I could not have been counterpetitioning
you could not have been counterpetitioning
she could not have been counterpetitioning
we could not have been counterpetitioning
you could not have been counterpetitioning
they could not have been counterpetitioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I counterpetition?
could you counterpetition?
could she counterpetition?
could we counterpetition?
could you counterpetition?
could they counterpetition? 	could I be counterpetitioning?
could you be counterpetitioning?
could she be counterpetitioning?
could we be counterpetitioning?
could you be counterpetitioning?
could they be counterpetitioning? 	could I have counterpetitioned?
could you have counterpetitioned?
could she have counterpetitioned?
could we have counterpetitioned?
could you have counterpetitioned?
could they have counterpetitioned? 	could I have been counterpetitioning?
could you have been counterpetitioning?
could she have been counterpetitioning?
could we have been counterpetitioning?
could you have been counterpetitioning?
could they have been counterpetitioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not counterpetition?
could you not counterpetition?
could she not counterpetition?
could we not counterpetition?
could you not counterpetition?
could they not counterpetition? 	could I not be counterpetitioning?
could you not be counterpetitioning?
could she not be counterpetitioning?
could we not be counterpetitioning?
could you not be counterpetitioning?
could they not be counterpetitioning? 	could I not have counterpetitioned?
could you not have counterpetitioned?
could she not have counterpetitioned?
could we not have counterpetitioned?
could you not have counterpetitioned?
could they not have counterpetitioned? 	could I not have been counterpetitioning?
could you not have been counterpetitioning?
could she not have been counterpetitioning?
could we not have been counterpetitioning?
could you not have been counterpetitioning?
could they not have been counterpetitioning?