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