I'd be interesting you'd be interesting she'd be interesting we'd be interesting you'd be interesting they'd be interesting
Perfect
I should've interested you should've interested she should've interested we should've interested you should've interested they should've interested
V-ing perfect
I should've been interesting you should've been interesting she should've been interesting we should've been interesting you should've been interesting they should've been interesting
Negation
Simple form
I shouldn't interest you shouldn't interest she shouldn't interest we shouldn't interest you shouldn't interest they shouldn't interest
V-ing form
I shouldn't be interesting you shouldn't be interesting she shouldn't be interesting we shouldn't be interesting you shouldn't be interesting they shouldn't be interesting
Perfect
I shouldn't have interested you shouldn't have interested she shouldn't have interested we shouldn't have interested you shouldn't have interested they shouldn't have interested
V-ing perfect
I shouldn't have been interesting you shouldn't have been interesting she shouldn't have been interesting we shouldn't have been interesting you shouldn't have been interesting they shouldn't have been interesting
Interrogative form
Simple form
should I interest? should you interest? should she interest? should we interest? should you interest? should they interest?
V-ing form
should I be interesting? should you be interesting? should she be interesting? should we be interesting? should you be interesting? should they be interesting?
Perfect
should I have interested? should you have interested? should she have interested? should we have interested? should you have interested? should they have interested?
V-ing perfect
should I have been interesting? should you have been interesting? should she have been interesting? should we have been interesting? should you have been interesting? should they have been interesting?
Interro-negative form
Simple form
shouldn't I interest? shouldn't you interest? shouldn't she interest? shouldn't we interest? shouldn't you interest? shouldn't they interest?
V-ing form
shouldn't I be interesting? shouldn't you be interesting? shouldn't she be interesting? shouldn't we be interesting? shouldn't you be interesting? shouldn't they be interesting?
Perfect
shouldn't I have interested? shouldn't you have interested? shouldn't she have interested? shouldn't we have interested? shouldn't you have interested? shouldn't they have interested?
V-ing perfect
shouldn't I have been interesting? shouldn't you have been interesting? shouldn't she have been interesting? shouldn't we have been interesting? shouldn't you have been interesting? shouldn't they have been interesting?