English verb conjugation
MAY REFUEL

Regular verb: refuel - refuelled - refuelled

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I mayn't refuel you mayn't refuel she mayn't refuel we mayn't refuel you mayn't refuel they mayn't refuel	I mayn't be refuelling you mayn't be refuelling she mayn't be refuelling we mayn't be refuelling you mayn't be refuelling they mayn't be refuelling
Perfect	V-ing perfect
I mayn't have refuelled you mayn't have refuelled she mayn't have refuelled we mayn't have refuelled you mayn't have refuelled they mayn't have refuelled	I mayn't have been refuelling you mayn't have been refuelling she mayn't have been refuelling we mayn't have been refuelling you mayn't have been refuelling they mayn't have been refuelling

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

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