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