I'd be answering you'd be answering he'd be answering we'd be answering you'd be answering they'd be answering
Perfect
I should've answered you should've answered he should've answered we should've answered you should've answered they should've answered
V-ing perfect
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
I shouldn't answer you shouldn't answer he shouldn't answer we shouldn't answer you shouldn't answer they shouldn't answer
V-ing form
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
Perfect
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
V-ing perfect
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
should I answer? should you answer? should he answer? should we answer? should you answer? should they answer?
V-ing form
should I be answering? should you be answering? should he be answering? should we be answering? should you be answering? should they be answering?
Perfect
should I have answered? should you have answered? should he have answered? should we have answered? should you have answered? should they have answered?
V-ing perfect
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
shouldn't I answer? shouldn't you answer? shouldn't he answer? shouldn't we answer? shouldn't you answer? shouldn't they answer?
V-ing form
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?
Perfect
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?
V-ing perfect
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?