English verb conjugation
SHOULD REFUEL

Regular verb: refuel - refuelled - refuelled

Affirmation

Simple form	V-ing form
I'd refuel you'd refuel he'd refuel we'd refuel you'd refuel they'd refuel	I'd be refuelling you'd be refuelling he'd be refuelling we'd be refuelling you'd be refuelling they'd be refuelling
Perfect	V-ing perfect
I should've refuelled you should've refuelled he 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 he 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
I shouldn't refuel you shouldn't refuel he 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 he shouldn't be refuelling we shouldn't be refuelling you shouldn't be refuelling they shouldn't be refuelling
Perfect	V-ing perfect
I shouldn't have refuelled you shouldn't have refuelled he 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 he 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
should I refuel? should you refuel? should he refuel? should we refuel? should you refuel? should they refuel?	should I be refuelling? should you be refuelling? should he be refuelling? should we be refuelling? should you be refuelling? should they be refuelling?
Perfect	V-ing perfect
should I have refuelled? should you have refuelled? should he 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 he 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
shouldn't I refuel? shouldn't you refuel? shouldn't he 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 he be refuelling? shouldn't we be refuelling? shouldn't you be refuelling? shouldn't they be refuelling?
Perfect	V-ing perfect
shouldn't I have refuelled? shouldn't you have refuelled? shouldn't he 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 he have been refuelling? shouldn't we have been refuelling? shouldn't you have been refuelling? shouldn't they have been refuelling?