should counterpetition
Regular verb: counterpetition - counterpetitioned- counterpetitioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd counterpetition
you'd counterpetition
she'd counterpetition
we'd counterpetition
you'd counterpetition
they'd counterpetition 	I'd be counterpetitioning
you'd be counterpetitioning
she'd be counterpetitioning
we'd be counterpetitioning
you'd be counterpetitioning
they'd be counterpetitioning	I should've counterpetitioned
you should've counterpetitioned
she should've counterpetitioned
we should've counterpetitioned
you should've counterpetitioned
they should've counterpetitioned	I should've been counterpetitioning
you should've been counterpetitioning
she should've been counterpetitioning
we should've been counterpetitioning
you should've been counterpetitioning
they should've been counterpetitioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't counterpetition
you shouldn't counterpetition
she shouldn't counterpetition
we shouldn't counterpetition
you shouldn't counterpetition
they shouldn't counterpetition 	I shouldn't be counterpetitioning
you shouldn't be counterpetitioning
she shouldn't be counterpetitioning
we shouldn't be counterpetitioning
you shouldn't be counterpetitioning
they shouldn't be counterpetitioning	I shouldn't have counterpetitioned
you shouldn't have counterpetitioned
she shouldn't have counterpetitioned
we shouldn't have counterpetitioned
you shouldn't have counterpetitioned
they shouldn't have counterpetitioned	I shouldn't have been counterpetitioning
you shouldn't have been counterpetitioning
she shouldn't have been counterpetitioning
we shouldn't have been counterpetitioning
you shouldn't have been counterpetitioning
they shouldn't have been counterpetitioning	

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

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