I'd be operating you'd be operating he'd be operating we'd be operating you'd be operating they'd be operating
Perfect
I should've operated you should've operated he 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 he 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 he 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 he 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 he 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 he 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 he operate? should we operate? should you operate? should they operate?
V-ing form
should I be operating? should you be operating? should he be operating? should we be operating? should you be operating? should they be operating?
Perfect
should I have operated? should you have operated? should he 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 he 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 he 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 he 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 he 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 he have been operating? shouldn't we have been operating? shouldn't you have been operating? shouldn't they have been operating?