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