ought to refuel
Verbo regular: refuel - refuelled- refuelled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to refuel
you ought not to refuel
he ought not to refuel
we ought not to refuel
you ought not to refuel
they ought not to refuel 	I ought not to refuelling
you ought not to refuelling
he ought not to refuelling
we ought not to refuelling
you ought not to refuelling
they ought not to refuelling	I ought not to have refuelled
you ought not to have refuelled
he ought not to have refuelled
we ought not to have refuelled
you ought not to have refuelled
they ought not to have refuelled	I ought not to have been refuelling
you ought not to have been refuelling
he ought not to have been refuelling
we ought not to have been refuelling
you ought not to have been refuelling
they ought not to have been refuelling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to refuel?
ought you not to refuel?
ought he not to refuel?
ought we not to refuel?
ought you not to refuel?
ought they not to refuel? 	ought I not to be refuelling?
ought you not to be refuelling?
ought he not to be refuelling?
ought we not to be refuelling?
ought you not to be refuelling?
ought they not to be refuelling? 	ought I not to have refuelled?
ought you not to have refuelled?
ought he not to have refuelled?
ought we not to have refuelled?
ought you not to have refuelled?
ought they not to have refuelled? 	ought I not to have been refuelling?
ought you not to have been refuelling?
ought he not to have been refuelling?
ought we not to have been refuelling?
ought you not to have been refuelling?
ought they not to have been refuelling?