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