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