English verb conjugation
OUGHT TO REFUEL

Regular verb: refuel - refuelled - refuelled

Affirmation

Simple form	V-ing form
I ought to refuel you ought to refuel he ought to refuel we ought to refuel you ought to refuel they ought to refuel	I ought to be refuelling you ought to be refuelling he ought to be refuelling we ought to be refuelling you ought to be refuelling they ought to be refuelling
Perfect	V-ing perfect
I ought to have refuelled you ought to have refuelled he ought to have refuelled we ought to have refuelled you ought to have refuelled they ought to have refuelled	I ought to have been refuelling you ought to have been refuelling he ought to have been refuelling we ought to have been refuelling you ought to have been refuelling they ought to have been refuelling

Negation

Simple form	V-ing form
I oughtn't to refuel you oughtn't to refuel he oughtn't to refuel we oughtn't to refuel you oughtn't to refuel they oughtn't to refuel	I oughtn't to be refuelling you oughtn't to be refuelling he oughtn't to be refuelling we oughtn't to be refuelling you oughtn't to be refuelling they oughtn't to be refuelling
Perfect	V-ing perfect
I oughtn't to have refuelled you oughtn't to have refuelled he oughtn't to have refuelled we oughtn't to have refuelled you oughtn't to have refuelled they oughtn't to have refuelled	I oughtn't to have been refuelling you oughtn't to have been refuelling he oughtn't to have been refuelling we oughtn't to have been refuelling you oughtn't to have been refuelling they oughtn't to have been refuelling

Interrogative form

Simple form	V-ing form
ought to I refuel? ought to you refuel? ought to he refuel? ought to we refuel? ought to you refuel? ought to they refuel?	ought to I be refuelling? ought to you be refuelling? ought to he be refuelling? ought to we be refuelling? ought to you be refuelling? ought to they be refuelling?
Perfect	V-ing perfect
ought to I have refuelled? ought to you have refuelled? ought to he have refuelled? ought to we have refuelled? ought to you have refuelled? ought to they have refuelled?	ought to I have been refuelling? ought to you have been refuelling? ought to he have been refuelling? ought to we have been refuelling? ought to you have been refuelling? ought to they have been refuelling?

Interro-negative form

Simple form	V-ing form
oughtn't I to refuel? oughtn't you to refuel? oughtn't he to refuel? oughtn't we to refuel? oughtn't you to refuel? oughtn't they to refuel?	oughtn't I to be refuelling? oughtn't you to be refuelling? oughtn't he to be refuelling? oughtn't we to be refuelling? oughtn't you to be refuelling? oughtn't they to be refuelling?
Perfect	V-ing perfect
oughtn't I to have refuelled? oughtn't you to have refuelled? oughtn't he to have refuelled? oughtn't we to have refuelled? oughtn't you to have refuelled? oughtn't they to have refuelled?	oughtn't I to have been refuelling? oughtn't you to have been refuelling? oughtn't he to have been refuelling? oughtn't we to have been refuelling? oughtn't you to have been refuelling? oughtn't they to have been refuelling?