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