don't I refuel? don't you refuel? doesn't she refuel? don't we refuel? don't you refuel? don't they refuel?
Presente continuo
am I not refuelling? aren't you refuelling? isn't she refuelling? aren't we refuelling? aren't you refuelling? aren't they refuelling?
Pretérito
didn't I refuel? didn't you refuel? didn't she refuel? didn't we refuel? didn't you refuel? didn't they refuel?
Pretérito continuo
wasn't I refuelling? weren't you refuelling? wasn't she refuelling? weren't we refuelling? weren't you refuelling? weren't they refuelling?
Presente perfecto
haven't I refuelled? haven't you refuelled? hasn't she refuelled? haven't we refuelled? haven't you refuelled? haven't they refuelled?
Presente perfecto continuo
haven't I been refuelling? haven't you been refuelling? hasn't she been refuelling? haven't we been refuelling? haven't you been refuelling? haven't they been refuelling?
Pluscuamperfecto
hadn't I refuelled? hadn't you refuelled? hadn't she refuelled? hadn't we refuelled? hadn't you refuelled? hadn't they refuelled?
Pluscuamperfecto continuo
hadn't I been refuelling? hadn't you been refuelling? hadn't she been refuelling? hadn't we been refuelling? hadn't you been refuelling? hadn't they been refuelling?
Futuro simple
won't I refuel? won't you refuel? won't she refuel? won't we refuel? won't you refuel? won't they refuel?
Futuro continuo
won't I be refuelling? won't you be refuelling? won't she be refuelling? won't we be refuelling? won't you be refuelling? won't they be refuelling?
Futuro perfecto
won't I have refuelled? won't you have refuelled? won't she have refuelled? won't we have refuelled? won't you have refuelled? won't they have refuelled?
Futuro perfecto contínuo
won't I have been refuelling? won't you have been refuelling? won't she have been refuelling? won't we have been refuelling? won't you have been refuelling? won't they have been refuelling?
Condicional
Presente
wouldn't I refuel? wouldn't you refuel? wouldn't she refuel? wouldn't we refuel? wouldn't you refuel? wouldn't they refuel?
Presente continuo
wouldn't I be refuelling? wouldn't you be refuelling? wouldn't she be refuelling? wouldn't we be refuelling? wouldn't you be refuelling? wouldn't they be refuelling?
Passado
wouldn't I have refuelled? wouldn't you have refuelled? wouldn't she have refuelled? wouldn't we have refuelled? wouldn't you have refuelled? wouldn't they have refuelled?
Passado continuo
wouldn't I have been refuelling? wouldn't you have been refuelling? wouldn't she have been refuelling? wouldn't we have been refuelling? wouldn't you have been refuelling? wouldn't they have been refuelling?