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