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