should yap
Regular verb: yap - yapped- yapped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd yap
you'd yap
he'd yap
we'd yap
you'd yap
they'd yap 	I'd be yapping
you'd be yapping
he'd be yapping
we'd be yapping
you'd be yapping
they'd be yapping	I should've yapped
you should've yapped
he should've yapped
we should've yapped
you should've yapped
they should've yapped	I should've been yapping
you should've been yapping
he should've been yapping
we should've been yapping
you should've been yapping
they should've been yapping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't yap
you shouldn't yap
he shouldn't yap
we shouldn't yap
you shouldn't yap
they shouldn't yap 	I shouldn't be yapping
you shouldn't be yapping
he shouldn't be yapping
we shouldn't be yapping
you shouldn't be yapping
they shouldn't be yapping	I shouldn't have yapped
you shouldn't have yapped
he shouldn't have yapped
we shouldn't have yapped
you shouldn't have yapped
they shouldn't have yapped	I shouldn't have been yapping
you shouldn't have been yapping
he shouldn't have been yapping
we shouldn't have been yapping
you shouldn't have been yapping
they shouldn't have been yapping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I yap?
should you yap?
should he yap?
should we yap?
should you yap?
should they yap? 	should I be yapping?
should you be yapping?
should he be yapping?
should we be yapping?
should you be yapping?
should they be yapping? 	should I have yapped?
should you have yapped?
should he have yapped?
should we have yapped?
should you have yapped?
should they have yapped? 	should I have been yapping?
should you have been yapping?
should he have been yapping?
should we have been yapping?
should you have been yapping?
should they have been yapping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I yap?
shouldn't you yap?
shouldn't he yap?
shouldn't we yap?
shouldn't you yap?
shouldn't they yap? 	shouldn't I be yapping?
shouldn't you be yapping?
shouldn't he be yapping?
shouldn't we be yapping?
shouldn't you be yapping?
shouldn't they be yapping? 	shouldn't I have yapped?
shouldn't you have yapped?
shouldn't he have yapped?
shouldn't we have yapped?
shouldn't you have yapped?
shouldn't they have yapped? 	shouldn't I have been yapping?
shouldn't you have been yapping?
shouldn't he have been yapping?
shouldn't we have been yapping?
shouldn't you have been yapping?
shouldn't they have been yapping?