should luff
Regular verb: luff - luffed- luffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd luff
you'd luff
she'd luff
we'd luff
you'd luff
they'd luff 	I'd be luffing
you'd be luffing
she'd be luffing
we'd be luffing
you'd be luffing
they'd be luffing	I should've luffed
you should've luffed
she should've luffed
we should've luffed
you should've luffed
they should've luffed	I should've been luffing
you should've been luffing
she should've been luffing
we should've been luffing
you should've been luffing
they should've been luffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't luff
you shouldn't luff
she shouldn't luff
we shouldn't luff
you shouldn't luff
they shouldn't luff 	I shouldn't be luffing
you shouldn't be luffing
she shouldn't be luffing
we shouldn't be luffing
you shouldn't be luffing
they shouldn't be luffing	I shouldn't have luffed
you shouldn't have luffed
she shouldn't have luffed
we shouldn't have luffed
you shouldn't have luffed
they shouldn't have luffed	I shouldn't have been luffing
you shouldn't have been luffing
she shouldn't have been luffing
we shouldn't have been luffing
you shouldn't have been luffing
they shouldn't have been luffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I luff?
should you luff?
should she luff?
should we luff?
should you luff?
should they luff? 	should I be luffing?
should you be luffing?
should she be luffing?
should we be luffing?
should you be luffing?
should they be luffing? 	should I have luffed?
should you have luffed?
should she have luffed?
should we have luffed?
should you have luffed?
should they have luffed? 	should I have been luffing?
should you have been luffing?
should she have been luffing?
should we have been luffing?
should you have been luffing?
should they have been luffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I luff?
shouldn't you luff?
shouldn't she luff?
shouldn't we luff?
shouldn't you luff?
shouldn't they luff? 	shouldn't I be luffing?
shouldn't you be luffing?
shouldn't she be luffing?
shouldn't we be luffing?
shouldn't you be luffing?
shouldn't they be luffing? 	shouldn't I have luffed?
shouldn't you have luffed?
shouldn't she have luffed?
shouldn't we have luffed?
shouldn't you have luffed?
shouldn't they have luffed? 	shouldn't I have been luffing?
shouldn't you have been luffing?
shouldn't she have been luffing?
shouldn't we have been luffing?
shouldn't you have been luffing?
shouldn't they have been luffing?