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