English verb conjugation
COULD DEFORM

Regular verb: deform - deformed - deformed

Affirmation

Simple form	V-ing form
I could deform you could deform she could deform we could deform you could deform they could deform	I could be deforming you could be deforming she could be deforming we could be deforming you could be deforming they could be deforming
Perfect	V-ing perfect
I could have deformed you could have deformed she could have deformed we could have deformed you could have deformed they could have deformed	I could have been deforming you could have been deforming she could have been deforming we could have been deforming you could have been deforming they could have been deforming

Negation

Simple form	V-ing form
I could not deform you could not deform she could not deform we could not deform you could not deform they could not deform	I could not be deforming you could not be deforming she could not be deforming we could not be deforming you could not be deforming they could not be deforming
Perfect	V-ing perfect
I could not have deformed you could not have deformed she could not have deformed we could not have deformed you could not have deformed they could not have deformed	I could not have been deforming you could not have been deforming she could not have been deforming we could not have been deforming you could not have been deforming they could not have been deforming

Interrogative form

Simple form	V-ing form
could I deform? could you deform? could she deform? could we deform? could you deform? could they deform?	could I be deforming? could you be deforming? could she be deforming? could we be deforming? could you be deforming? could they be deforming?
Perfect	V-ing perfect
could I have deformed? could you have deformed? could she have deformed? could we have deformed? could you have deformed? could they have deformed?	could I have been deforming? could you have been deforming? could she have been deforming? could we have been deforming? could you have been deforming? could they have been deforming?

Interro-negative form

Simple form	V-ing form
could I not deform? could you not deform? could she not deform? could we not deform? could you not deform? could they not deform?	could I not be deforming? could you not be deforming? could she not be deforming? could we not be deforming? could you not be deforming? could they not be deforming?
Perfect	V-ing perfect
could I not have deformed? could you not have deformed? could she not have deformed? could we not have deformed? could you not have deformed? could they not have deformed?	could I not have been deforming? could you not have been deforming? could she not have been deforming? could we not have been deforming? could you not have been deforming? could they not have been deforming?