English verb conjugation
CAN FUEL

Regular verb: fuel - fuelled - fuelled

Affirmation

Simple form	V-ing form
I can fuel you can fuel he can fuel we can fuel you can fuel they can fuel	I can be fuelling you can be fuelling he can be fuelling we can be fuelling you can be fuelling they can be fuelling
Perfect	V-ing perfect
I can have fuelled you can have fuelled he can have fuelled we can have fuelled you can have fuelled they can have fuelled	I can have been fuelling you can have been fuelling he can have been fuelling we can have been fuelling you can have been fuelling they can have been fuelling

Negation

Simple form	V-ing form
I cannot fuel you cannot fuel he cannot fuel we cannot fuel you cannot fuel they cannot fuel	I cannot be fuelling you cannot be fuelling he cannot be fuelling we cannot be fuelling you cannot be fuelling they cannot be fuelling
Perfect	V-ing perfect
I cannot have fuelled you cannot have fuelled he cannot have fuelled we cannot have fuelled you cannot have fuelled they cannot have fuelled	I cannot have been fuelling you cannot have been fuelling he cannot have been fuelling we cannot have been fuelling you cannot have been fuelling they cannot have been fuelling

Interrogative form

Simple form	V-ing form
can I fuel? can you fuel? can he fuel? can we fuel? can you fuel? can they fuel?	can I be fuelling? can you be fuelling? can he be fuelling? can we be fuelling? can you be fuelling? can they be fuelling?
Perfect	V-ing perfect
can I have fuelled? can you have fuelled? can he have fuelled? can we have fuelled? can you have fuelled? can they have fuelled?	can I have been fuelling? can you have been fuelling? can he have been fuelling? can we have been fuelling? can you have been fuelling? can they have been fuelling?

Interro-negative form

Simple form	V-ing form
can I not fuel? can you not fuel? can he not fuel? can we not fuel? can you not fuel? can they not fuel?	can I not be fuelling? can you not be fuelling? can he not be fuelling? can we not be fuelling? can you not be fuelling? can they not be fuelling?
Perfect	V-ing perfect
can I not have fuelled? can you not have fuelled? can he not have fuelled? can we not have fuelled? can you not have fuelled? can they not have fuelled?	can I not have been fuelling? can you not have been fuelling? can he not have been fuelling? can we not have been fuelling? can you not have been fuelling? can they not have been fuelling?