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