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