I'd be keening you'd be keening he'd be keening we'd be keening you'd be keening they'd be keening
Perfect
I should've keened you should've keened he should've keened we should've keened you should've keened they should've keened
V-ing perfect
I should've been keening you should've been keening he should've been keening we should've been keening you should've been keening they should've been keening
Negation
Simple form
I shouldn't keen you shouldn't keen he shouldn't keen we shouldn't keen you shouldn't keen they shouldn't keen
V-ing form
I shouldn't be keening you shouldn't be keening he shouldn't be keening we shouldn't be keening you shouldn't be keening they shouldn't be keening
Perfect
I shouldn't have keened you shouldn't have keened he shouldn't have keened we shouldn't have keened you shouldn't have keened they shouldn't have keened
V-ing perfect
I shouldn't have been keening you shouldn't have been keening he shouldn't have been keening we shouldn't have been keening you shouldn't have been keening they shouldn't have been keening
Interrogative form
Simple form
should I keen? should you keen? should he keen? should we keen? should you keen? should they keen?
V-ing form
should I be keening? should you be keening? should he be keening? should we be keening? should you be keening? should they be keening?
Perfect
should I have keened? should you have keened? should he have keened? should we have keened? should you have keened? should they have keened?
V-ing perfect
should I have been keening? should you have been keening? should he have been keening? should we have been keening? should you have been keening? should they have been keening?
Interro-negative form
Simple form
shouldn't I keen? shouldn't you keen? shouldn't he keen? shouldn't we keen? shouldn't you keen? shouldn't they keen?
V-ing form
shouldn't I be keening? shouldn't you be keening? shouldn't he be keening? shouldn't we be keening? shouldn't you be keening? shouldn't they be keening?
Perfect
shouldn't I have keened? shouldn't you have keened? shouldn't he have keened? shouldn't we have keened? shouldn't you have keened? shouldn't they have keened?
V-ing perfect
shouldn't I have been keening? shouldn't you have been keening? shouldn't he have been keening? shouldn't we have been keening? shouldn't you have been keening? shouldn't they have been keening?