English verb conjugation
COULD KEN

Regular verb: ken - kened - kened

Affirmation

Simple form	V-ing form
I could ken you could ken she could ken we could ken you could ken they could ken	I could be kening you could be kening she could be kening we could be kening you could be kening they could be kening
Perfect	V-ing perfect
I could have kened you could have kened she could have kened we could have kened you could have kened they could have kened	I could have been kening you could have been kening she could have been kening we could have been kening you could have been kening they could have been kening

Negation

Simple form	V-ing form
I could not ken you could not ken she could not ken we could not ken you could not ken they could not ken	I could not be kening you could not be kening she could not be kening we could not be kening you could not be kening they could not be kening
Perfect	V-ing perfect
I could not have kened you could not have kened she could not have kened we could not have kened you could not have kened they could not have kened	I could not have been kening you could not have been kening she could not have been kening we could not have been kening you could not have been kening they could not have been kening

Interrogative form

Simple form	V-ing form
could I ken? could you ken? could she ken? could we ken? could you ken? could they ken?	could I be kening? could you be kening? could she be kening? could we be kening? could you be kening? could they be kening?
Perfect	V-ing perfect
could I have kened? could you have kened? could she have kened? could we have kened? could you have kened? could they have kened?	could I have been kening? could you have been kening? could she have been kening? could we have been kening? could you have been kening? could they have been kening?

Interro-negative form

Simple form	V-ing form
could I not ken? could you not ken? could she not ken? could we not ken? could you not ken? could they not ken?	could I not be kening? could you not be kening? could she not be kening? could we not be kening? could you not be kening? could they not be kening?
Perfect	V-ing perfect
could I not have kened? could you not have kened? could she not have kened? could we not have kened? could you not have kened? could they not have kened?	could I not have been kening? could you not have been kening? could she not have been kening? could we not have been kening? could you not have been kening? could they not have been kening?