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