I'd be operating you'd be operating she'd be operating we'd be operating you'd be operating they'd be operating
Perfect
I should've operated you should've operated she should've operated we should've operated you should've operated they should've operated
V-ing perfect
I should've been operating you should've been operating she should've been operating we should've been operating you should've been operating they should've been operating
Negation
Simple form
I shouldn't operate you shouldn't operate she shouldn't operate we shouldn't operate you shouldn't operate they shouldn't operate
V-ing form
I shouldn't be operating you shouldn't be operating she shouldn't be operating we shouldn't be operating you shouldn't be operating they shouldn't be operating
Perfect
I shouldn't have operated you shouldn't have operated she shouldn't have operated we shouldn't have operated you shouldn't have operated they shouldn't have operated
V-ing perfect
I shouldn't have been operating you shouldn't have been operating she shouldn't have been operating we shouldn't have been operating you shouldn't have been operating they shouldn't have been operating
Interrogative form
Simple form
should I operate? should you operate? should she operate? should we operate? should you operate? should they operate?
V-ing form
should I be operating? should you be operating? should she be operating? should we be operating? should you be operating? should they be operating?
Perfect
should I have operated? should you have operated? should she have operated? should we have operated? should you have operated? should they have operated?
V-ing perfect
should I have been operating? should you have been operating? should she have been operating? should we have been operating? should you have been operating? should they have been operating?
Interro-negative form
Simple form
shouldn't I operate? shouldn't you operate? shouldn't she operate? shouldn't we operate? shouldn't you operate? shouldn't they operate?
V-ing form
shouldn't I be operating? shouldn't you be operating? shouldn't she be operating? shouldn't we be operating? shouldn't you be operating? shouldn't they be operating?
Perfect
shouldn't I have operated? shouldn't you have operated? shouldn't she have operated? shouldn't we have operated? shouldn't you have operated? shouldn't they have operated?
V-ing perfect
shouldn't I have been operating? shouldn't you have been operating? shouldn't she have been operating? shouldn't we have been operating? shouldn't you have been operating? shouldn't they have been operating?