English verb conjugation
COULD LEAN

Regular verb: lean - leaned - leaned

Affirmation

Simple form	V-ing form
I could lean you could lean she could lean we could lean you could lean they could lean	I could be leaning you could be leaning she could be leaning we could be leaning you could be leaning they could be leaning
Perfect	V-ing perfect
I could have leaned you could have leaned she could have leaned we could have leaned you could have leaned they could have leaned	I could have been leaning you could have been leaning she could have been leaning we could have been leaning you could have been leaning they could have been leaning

Negation

Simple form	V-ing form
I could not lean you could not lean she could not lean we could not lean you could not lean they could not lean	I could not be leaning you could not be leaning she could not be leaning we could not be leaning you could not be leaning they could not be leaning
Perfect	V-ing perfect
I could not have leaned you could not have leaned she could not have leaned we could not have leaned you could not have leaned they could not have leaned	I could not have been leaning you could not have been leaning she could not have been leaning we could not have been leaning you could not have been leaning they could not have been leaning

Interrogative form

Simple form	V-ing form
could I lean? could you lean? could she lean? could we lean? could you lean? could they lean?	could I be leaning? could you be leaning? could she be leaning? could we be leaning? could you be leaning? could they be leaning?
Perfect	V-ing perfect
could I have leaned? could you have leaned? could she have leaned? could we have leaned? could you have leaned? could they have leaned?	could I have been leaning? could you have been leaning? could she have been leaning? could we have been leaning? could you have been leaning? could they have been leaning?

Interro-negative form

Simple form	V-ing form
could I not lean? could you not lean? could she not lean? could we not lean? could you not lean? could they not lean?	could I not be leaning? could you not be leaning? could she not be leaning? could we not be leaning? could you not be leaning? could they not be leaning?
Perfect	V-ing perfect
could I not have leaned? could you not have leaned? could she not have leaned? could we not have leaned? could you not have leaned? could they not have leaned?	could I not have been leaning? could you not have been leaning? could she not have been leaning? could we not have been leaning? could you not have been leaning? could they not have been leaning?