English verb conjugation
SHOULD PAIN

Regular verb: pain - pained - pained

Affirmation

Simple form	V-ing form
I'd pain you'd pain he'd pain we'd pain you'd pain they'd pain	I'd be paining you'd be paining he'd be paining we'd be paining you'd be paining they'd be paining
Perfect	V-ing perfect
I should've pained you should've pained he should've pained we should've pained you should've pained they should've pained	I should've been paining you should've been paining he should've been paining we should've been paining you should've been paining they should've been paining

Negation

Simple form	V-ing form
I shouldn't pain you shouldn't pain he shouldn't pain we shouldn't pain you shouldn't pain they shouldn't pain	I shouldn't be paining you shouldn't be paining he shouldn't be paining we shouldn't be paining you shouldn't be paining they shouldn't be paining
Perfect	V-ing perfect
I shouldn't have pained you shouldn't have pained he shouldn't have pained we shouldn't have pained you shouldn't have pained they shouldn't have pained	I shouldn't have been paining you shouldn't have been paining he shouldn't have been paining we shouldn't have been paining you shouldn't have been paining they shouldn't have been paining

Interrogative form

Simple form	V-ing form
should I pain? should you pain? should he pain? should we pain? should you pain? should they pain?	should I be paining? should you be paining? should he be paining? should we be paining? should you be paining? should they be paining?
Perfect	V-ing perfect
should I have pained? should you have pained? should he have pained? should we have pained? should you have pained? should they have pained?	should I have been paining? should you have been paining? should he have been paining? should we have been paining? should you have been paining? should they have been paining?

Interro-negative form

Simple form	V-ing form
shouldn't I pain? shouldn't you pain? shouldn't he pain? shouldn't we pain? shouldn't you pain? shouldn't they pain?	shouldn't I be paining? shouldn't you be paining? shouldn't he be paining? shouldn't we be paining? shouldn't you be paining? shouldn't they be paining?
Perfect	V-ing perfect
shouldn't I have pained? shouldn't you have pained? shouldn't he have pained? shouldn't we have pained? shouldn't you have pained? shouldn't they have pained?	shouldn't I have been paining? shouldn't you have been paining? shouldn't he have been paining? shouldn't we have been paining? shouldn't you have been paining? shouldn't they have been paining?