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 can't level you can't level he can't level we can't level you can't level they can't level	I can't be levelling you can't be levelling he can't be levelling we can't be levelling you can't be levelling they can't be levelling
Perfect	V-ing perfect
I can't have levelled you can't have levelled he can't have levelled we can't have levelled you can't have levelled they can't have levelled	I can't have been levelling you can't have been levelling he can't have been levelling we can't have been levelling you can't have been levelling they can't 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't I level? can't you level? can't he level? can't we level? can't you level? can't they level?	can't I be levelling? can't you be levelling? can't he be levelling? can't we be levelling? can't you be levelling? can't they be levelling?
Perfect	V-ing perfect
can't I have levelled? can't you have levelled? can't he have levelled? can't we have levelled? can't you have levelled? can't they have levelled?	can't I have been levelling? can't you have been levelling? can't he have been levelling? can't we have been levelling? can't you have been levelling? can't they have been levelling?