English verb conjugation
SHOULD PURL

Regular verb: purl - purled - purled

Affirmation

Simple form	V-ing form
I'd purl you'd purl she'd purl we'd purl you'd purl they'd purl	I'd be purling you'd be purling she'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 she 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 she 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 she 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 she 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 she 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 she 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 she purl? should we purl? should you purl? should they purl?	should I be purling? should you be purling? should she 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 she 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 she 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 she 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 she 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 she 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 she have been purling? shouldn't we have been purling? shouldn't you have been purling? shouldn't they have been purling?