should answer
Regular verb: answer - answered- answered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd answer
you'd answer
he'd answer
we'd answer
you'd answer
they'd answer 	I'd be answering
you'd be answering
he'd be answering
we'd be answering
you'd be answering
they'd be answering	I should've answered
you should've answered
he should've answered
we should've answered
you should've answered
they should've answered	I should've been answering
you should've been answering
he should've been answering
we should've been answering
you should've been answering
they should've been answering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't answer
you shouldn't answer
he shouldn't answer
we shouldn't answer
you shouldn't answer
they shouldn't answer 	I shouldn't be answering
you shouldn't be answering
he shouldn't be answering
we shouldn't be answering
you shouldn't be answering
they shouldn't be answering	I shouldn't have answered
you shouldn't have answered
he shouldn't have answered
we shouldn't have answered
you shouldn't have answered
they shouldn't have answered	I shouldn't have been answering
you shouldn't have been answering
he shouldn't have been answering
we shouldn't have been answering
you shouldn't have been answering
they shouldn't have been answering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I answer?
should you answer?
should he answer?
should we answer?
should you answer?
should they answer? 	should I be answering?
should you be answering?
should he be answering?
should we be answering?
should you be answering?
should they be answering? 	should I have answered?
should you have answered?
should he have answered?
should we have answered?
should you have answered?
should they have answered? 	should I have been answering?
should you have been answering?
should he have been answering?
should we have been answering?
should you have been answering?
should they have been answering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I answer?
shouldn't you answer?
shouldn't he answer?
shouldn't we answer?
shouldn't you answer?
shouldn't they answer? 	shouldn't I be answering?
shouldn't you be answering?
shouldn't he be answering?
shouldn't we be answering?
shouldn't you be answering?
shouldn't they be answering? 	shouldn't I have answered?
shouldn't you have answered?
shouldn't he have answered?
shouldn't we have answered?
shouldn't you have answered?
shouldn't they have answered? 	shouldn't I have been answering?
shouldn't you have been answering?
shouldn't he have been answering?
shouldn't we have been answering?
shouldn't you have been answering?
shouldn't they have been answering?