English verb conjugation
CAN LEVEL

Regular verb: level - levelled - levelled

Affirmation

Simple form	V-ing form
I can level you can level he can level we can level you can level they can level	I can be levelling you can be levelling he can be levelling we can be levelling you can be levelling they can be levelling
Perfect	V-ing perfect
I can have levelled you can have levelled he can have levelled we can have levelled you can have levelled they can have levelled	I can have been levelling you can have been levelling he can have been levelling we can have been levelling you can have been levelling they can have been levelling

Negation

Simple form	V-ing form
I cannot level you cannot level he cannot level we cannot level you cannot level they cannot level	I cannot be levelling you cannot be levelling he cannot be levelling we cannot be levelling you cannot be levelling they cannot be levelling
Perfect	V-ing perfect
I cannot have levelled you cannot have levelled he cannot have levelled we cannot have levelled you cannot have levelled they cannot have levelled	I cannot have been levelling you cannot have been levelling he cannot have been levelling we cannot have been levelling you cannot have been levelling they cannot have been levelling

Interrogative form

Simple form	V-ing form
can I level? can you level? can he level? can we level? can you level? can they level?	can I be levelling? can you be levelling? can he be levelling? can we be levelling? can you be levelling? can they be levelling?
Perfect	V-ing perfect
can I have levelled? can you have levelled? can he have levelled? can we have levelled? can you have levelled? can they have levelled?	can I have been levelling? can you have been levelling? can he have been levelling? can we have been levelling? can you have been levelling? can they have been levelling?

Interro-negative form

Simple form	V-ing form
can I not level? can you not level? can he not level? can we not level? can you not level? can they not level?	can I not be levelling? can you not be levelling? can he not be levelling? can we not be levelling? can you not be levelling? can they not be levelling?
Perfect	V-ing perfect
can I not have levelled? can you not have levelled? can he not have levelled? can we not have levelled? can you not have levelled? can they not have levelled?	can I not have been levelling? can you not have been levelling? can he not have been levelling? can we not have been levelling? can you not have been levelling? can they not have been levelling?