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