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