English verb conjugation
SHOULD PURL

Regular verb: purl - purled - purled

Affirmation

Simple form	V-ing form
I'd purl you'd purl he'd purl we'd purl you'd purl they'd purl	I'd be purling you'd be purling he'd be purling we'd be purling you'd be purling they'd be purling
Perfect	V-ing perfect
I should've purled you should've purled he should've purled we should've purled you should've purled they should've purled	I should've been purling you should've been purling he should've been purling we should've been purling you should've been purling they should've been purling

Negation

Simple form	V-ing form
I shouldn't purl you shouldn't purl he shouldn't purl we shouldn't purl you shouldn't purl they shouldn't purl	I shouldn't be purling you shouldn't be purling he shouldn't be purling we shouldn't be purling you shouldn't be purling they shouldn't be purling
Perfect	V-ing perfect
I shouldn't have purled you shouldn't have purled he shouldn't have purled we shouldn't have purled you shouldn't have purled they shouldn't have purled	I shouldn't have been purling you shouldn't have been purling he shouldn't have been purling we shouldn't have been purling you shouldn't have been purling they shouldn't have been purling

Interrogative form

Simple form	V-ing form
should I purl? should you purl? should he purl? should we purl? should you purl? should they purl?	should I be purling? should you be purling? should he be purling? should we be purling? should you be purling? should they be purling?
Perfect	V-ing perfect
should I have purled? should you have purled? should he have purled? should we have purled? should you have purled? should they have purled?	should I have been purling? should you have been purling? should he have been purling? should we have been purling? should you have been purling? should they have been purling?

Interro-negative form

Simple form	V-ing form
shouldn't I purl? shouldn't you purl? shouldn't he purl? shouldn't we purl? shouldn't you purl? shouldn't they purl?	shouldn't I be purling? shouldn't you be purling? shouldn't he be purling? shouldn't we be purling? shouldn't you be purling? shouldn't they be purling?
Perfect	V-ing perfect
shouldn't I have purled? shouldn't you have purled? shouldn't he have purled? shouldn't we have purled? shouldn't you have purled? shouldn't they have purled?	shouldn't I have been purling? shouldn't you have been purling? shouldn't he have been purling? shouldn't we have been purling? shouldn't you have been purling? shouldn't they have been purling?