should purl
Regular verb: purl - purled- purled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?