English verb conjugation
COULD LEVEL

Regular verb: level - levelled - levelled

Affirmation

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

Negation

Simple form	V-ing form
I couldn't level you couldn't level she couldn't level we couldn't level you couldn't level they couldn't level	I couldn't be levelling you couldn't be levelling she couldn't be levelling we couldn't be levelling you couldn't be levelling they couldn't be levelling
Perfect	V-ing perfect
I couldn't have levelled you couldn't have levelled she couldn't have levelled we couldn't have levelled you couldn't have levelled they couldn't have levelled	I couldn't have been levelling you couldn't have been levelling she couldn't have been levelling we couldn't have been levelling you couldn't have been levelling they couldn't have been levelling

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I level? couldn't you level? couldn't she level? couldn't we level? couldn't you level? couldn't they level?	couldn't I be levelling? couldn't you be levelling? couldn't she be levelling? couldn't we be levelling? couldn't you be levelling? couldn't they be levelling?
Perfect	V-ing perfect
couldn't I have levelled? couldn't you have levelled? couldn't she have levelled? couldn't we have levelled? couldn't you have levelled? couldn't they have levelled?	couldn't I have been levelling? couldn't you have been levelling? couldn't she have been levelling? couldn't we have been levelling? couldn't you have been levelling? couldn't they have been levelling?