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