should counterclaim
Regular verb: counterclaim - counterclaimed- counterclaimed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd counterclaim
you'd counterclaim
she'd counterclaim
we'd counterclaim
you'd counterclaim
they'd counterclaim 	I'd be counterclaiming
you'd be counterclaiming
she'd be counterclaiming
we'd be counterclaiming
you'd be counterclaiming
they'd be counterclaiming	I should've counterclaimed
you should've counterclaimed
she should've counterclaimed
we should've counterclaimed
you should've counterclaimed
they should've counterclaimed	I should've been counterclaiming
you should've been counterclaiming
she should've been counterclaiming
we should've been counterclaiming
you should've been counterclaiming
they should've been counterclaiming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't counterclaim
you shouldn't counterclaim
she shouldn't counterclaim
we shouldn't counterclaim
you shouldn't counterclaim
they shouldn't counterclaim 	I shouldn't be counterclaiming
you shouldn't be counterclaiming
she shouldn't be counterclaiming
we shouldn't be counterclaiming
you shouldn't be counterclaiming
they shouldn't be counterclaiming	I shouldn't have counterclaimed
you shouldn't have counterclaimed
she shouldn't have counterclaimed
we shouldn't have counterclaimed
you shouldn't have counterclaimed
they shouldn't have counterclaimed	I shouldn't have been counterclaiming
you shouldn't have been counterclaiming
she shouldn't have been counterclaiming
we shouldn't have been counterclaiming
you shouldn't have been counterclaiming
they shouldn't have been counterclaiming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I counterclaim?
should you counterclaim?
should she counterclaim?
should we counterclaim?
should you counterclaim?
should they counterclaim? 	should I be counterclaiming?
should you be counterclaiming?
should she be counterclaiming?
should we be counterclaiming?
should you be counterclaiming?
should they be counterclaiming? 	should I have counterclaimed?
should you have counterclaimed?
should she have counterclaimed?
should we have counterclaimed?
should you have counterclaimed?
should they have counterclaimed? 	should I have been counterclaiming?
should you have been counterclaiming?
should she have been counterclaiming?
should we have been counterclaiming?
should you have been counterclaiming?
should they have been counterclaiming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I counterclaim?
shouldn't you counterclaim?
shouldn't she counterclaim?
shouldn't we counterclaim?
shouldn't you counterclaim?
shouldn't they counterclaim? 	shouldn't I be counterclaiming?
shouldn't you be counterclaiming?
shouldn't she be counterclaiming?
shouldn't we be counterclaiming?
shouldn't you be counterclaiming?
shouldn't they be counterclaiming? 	shouldn't I have counterclaimed?
shouldn't you have counterclaimed?
shouldn't she have counterclaimed?
shouldn't we have counterclaimed?
shouldn't you have counterclaimed?
shouldn't they have counterclaimed? 	shouldn't I have been counterclaiming?
shouldn't you have been counterclaiming?
shouldn't she have been counterclaiming?
shouldn't we have been counterclaiming?
shouldn't you have been counterclaiming?
shouldn't they have been counterclaiming?