I should drum you should drum she should drum we should drum you should drum they should drum
V-ing form
I should be drumming you should be drumming she should be drumming we should be drumming you should be drumming they should be drumming
Perfect
I should have drummed you should have drummed she should have drummed we should have drummed you should have drummed they should have drummed
V-ing perfect
I should have been drumming you should have been drumming she should have been drumming we should have been drumming you should have been drumming they should have been drumming
Negation
Simple form
I should not drum you should not drum she should not drum we should not drum you should not drum they should not drum
V-ing form
I should not be drumming you should not be drumming she should not be drumming we should not be drumming you should not be drumming they should not be drumming
Perfect
I should not have drummed you should not have drummed she should not have drummed we should not have drummed you should not have drummed they should not have drummed
V-ing perfect
I should not have been drumming you should not have been drumming she should not have been drumming we should not have been drumming you should not have been drumming they should not have been drumming
Interrogative form
Simple form
should I drum? should you drum? should she drum? should we drum? should you drum? should they drum?
V-ing form
should I be drumming? should you be drumming? should she be drumming? should we be drumming? should you be drumming? should they be drumming?
Perfect
should I have drummed? should you have drummed? should she 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 she have been drumming? should we have been drumming? should you have been drumming? should they have been drumming?
Interro-negative form
Simple form
should I not drum? should you not drum? should she not drum? should we not drum? should you not drum? should they not drum?
V-ing form
should I not be drumming? should you not be drumming? should she not be drumming? should we not be drumming? should you not be drumming? should they not be drumming?
Perfect
should I not have drummed? should you not have drummed? should she not have drummed? should we not have drummed? should you not have drummed? should they not have drummed?
V-ing perfect
should I not have been drumming? should you not have been drumming? should she not have been drumming? should we not have been drumming? should you not have been drumming? should they not have been drumming?