may refuel
Verbo regular: refuel - refuelled- refuelled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may refuel
you may refuel
she may refuel
we may refuel
you may refuel
they may refuel 	I may be refuelling
you may be refuelling
she may be refuelling
we may be refuelling
you may be refuelling
they may be refuelling	I may have refuelled
you may have refuelled
she may have refuelled
we may have refuelled
you may have refuelled
they may have refuelled	I may have been refuelling
you may have been refuelling
she may have been refuelling
we may have been refuelling
you may have been refuelling
they may have been refuelling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not refuel
you may not refuel
she may not refuel
we may not refuel
you may not refuel
they may not refuel 	I may not be refuelling
you may not be refuelling
she may not be refuelling
we may not be refuelling
you may not be refuelling
they may not be refuelling	I may not have refuelled
you may not have refuelled
she may not have refuelled
we may not have refuelled
you may not have refuelled
they may not have refuelled	I may not have been refuelling
you may not have been refuelling
she may not have been refuelling
we may not have been refuelling
you may not have been refuelling
they may not have been refuelling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I refuel?
may you refuel?
may she refuel?
may we refuel?
may you refuel?
may they refuel? 	may I be refuelling?
may you be refuelling?
may she be refuelling?
may we be refuelling?
may you be refuelling?
may they be refuelling? 	may I have refuelled?
may you have refuelled?
may she have refuelled?
may we have refuelled?
may you have refuelled?
may they have refuelled? 	may I have been refuelling?
may you have been refuelling?
may she have been refuelling?
may we have been refuelling?
may you have been refuelling?
may they have been refuelling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not refuel?
may you not refuel?
may she not refuel?
may we not refuel?
may you not refuel?
may they not refuel? 	may I not be refuelling?
may you not be refuelling?
may she not be refuelling?
may we not be refuelling?
may you not be refuelling?
may they not be refuelling? 	may I not have refuelled?
may you not have refuelled?
may she not have refuelled?
may we not have refuelled?
may you not have refuelled?
may they not have refuelled? 	may I not have been refuelling?
may you not have been refuelling?
may she not have been refuelling?
may we not have been refuelling?
may you not have been refuelling?
may they not have been refuelling?