should refuel
Regular verb: refuel - refuelled- refuelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd refuel
you'd refuel
she'd refuel
we'd refuel
you'd refuel
they'd refuel 	I'd be refuelling
you'd be refuelling
she'd be refuelling
we'd be refuelling
you'd be refuelling
they'd be refuelling	I should've refuelled
you should've refuelled
she should've refuelled
we should've refuelled
you should've refuelled
they should've refuelled	I should've been refuelling
you should've been refuelling
she should've been refuelling
we should've been refuelling
you should've been refuelling
they should've been refuelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't refuel
you shouldn't refuel
she shouldn't refuel
we shouldn't refuel
you shouldn't refuel
they shouldn't refuel 	I shouldn't be refuelling
you shouldn't be refuelling
she shouldn't be refuelling
we shouldn't be refuelling
you shouldn't be refuelling
they shouldn't be refuelling	I shouldn't have refuelled
you shouldn't have refuelled
she shouldn't have refuelled
we shouldn't have refuelled
you shouldn't have refuelled
they shouldn't have refuelled	I shouldn't have been refuelling
you shouldn't have been refuelling
she shouldn't have been refuelling
we shouldn't have been refuelling
you shouldn't have been refuelling
they shouldn't have been refuelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I refuel?
should you refuel?
should she refuel?
should we refuel?
should you refuel?
should they refuel? 	should I be refuelling?
should you be refuelling?
should she be refuelling?
should we be refuelling?
should you be refuelling?
should they be refuelling? 	should I have refuelled?
should you have refuelled?
should she have refuelled?
should we have refuelled?
should you have refuelled?
should they have refuelled? 	should I have been refuelling?
should you have been refuelling?
should she have been refuelling?
should we have been refuelling?
should you have been refuelling?
should they have been refuelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I refuel?
shouldn't you refuel?
shouldn't she refuel?
shouldn't we refuel?
shouldn't you refuel?
shouldn't they refuel? 	shouldn't I be refuelling?
shouldn't you be refuelling?
shouldn't she be refuelling?
shouldn't we be refuelling?
shouldn't you be refuelling?
shouldn't they be refuelling? 	shouldn't I have refuelled?
shouldn't you have refuelled?
shouldn't she have refuelled?
shouldn't we have refuelled?
shouldn't you have refuelled?
shouldn't they have refuelled? 	shouldn't I have been refuelling?
shouldn't you have been refuelling?
shouldn't she have been refuelling?
shouldn't we have been refuelling?
shouldn't you have been refuelling?
shouldn't they have been refuelling?