English verb conjugation
SHOULD PAIR

Regular verb: pair - paired - paired

Affirmation

Simple form	V-ing form
I'd pair you'd pair he'd pair we'd pair you'd pair they'd pair	I'd be pairing you'd be pairing he'd be pairing we'd be pairing you'd be pairing they'd be pairing
Perfect	V-ing perfect
I should've paired you should've paired he should've paired we should've paired you should've paired they should've paired	I should've been pairing you should've been pairing he should've been pairing we should've been pairing you should've been pairing they should've been pairing

Negation

Simple form	V-ing form
I shouldn't pair you shouldn't pair he shouldn't pair we shouldn't pair you shouldn't pair they shouldn't pair	I shouldn't be pairing you shouldn't be pairing he shouldn't be pairing we shouldn't be pairing you shouldn't be pairing they shouldn't be pairing
Perfect	V-ing perfect
I shouldn't have paired you shouldn't have paired he shouldn't have paired we shouldn't have paired you shouldn't have paired they shouldn't have paired	I shouldn't have been pairing you shouldn't have been pairing he shouldn't have been pairing we shouldn't have been pairing you shouldn't have been pairing they shouldn't have been pairing

Interrogative form

Simple form	V-ing form
should I pair? should you pair? should he pair? should we pair? should you pair? should they pair?	should I be pairing? should you be pairing? should he be pairing? should we be pairing? should you be pairing? should they be pairing?
Perfect	V-ing perfect
should I have paired? should you have paired? should he have paired? should we have paired? should you have paired? should they have paired?	should I have been pairing? should you have been pairing? should he have been pairing? should we have been pairing? should you have been pairing? should they have been pairing?

Interro-negative form

Simple form	V-ing form
shouldn't I pair? shouldn't you pair? shouldn't he pair? shouldn't we pair? shouldn't you pair? shouldn't they pair?	shouldn't I be pairing? shouldn't you be pairing? shouldn't he be pairing? shouldn't we be pairing? shouldn't you be pairing? shouldn't they be pairing?
Perfect	V-ing perfect
shouldn't I have paired? shouldn't you have paired? shouldn't he have paired? shouldn't we have paired? shouldn't you have paired? shouldn't they have paired?	shouldn't I have been pairing? shouldn't you have been pairing? shouldn't he have been pairing? shouldn't we have been pairing? shouldn't you have been pairing? shouldn't they have been pairing?