English verb conjugation
COULD HEEL

Regular verb: heel - heeled - heeled

Affirmation

Simple form	V-ing form
I could heel you could heel she could heel we could heel you could heel they could heel	I could be heeling you could be heeling she could be heeling we could be heeling you could be heeling they could be heeling
Perfect	V-ing perfect
I could have heeled you could have heeled she could have heeled we could have heeled you could have heeled they could have heeled	I could have been heeling you could have been heeling she could have been heeling we could have been heeling you could have been heeling they could have been heeling

Negation

Simple form	V-ing form
I couldn't heel you couldn't heel she couldn't heel we couldn't heel you couldn't heel they couldn't heel	I couldn't be heeling you couldn't be heeling she couldn't be heeling we couldn't be heeling you couldn't be heeling they couldn't be heeling
Perfect	V-ing perfect
I couldn't have heeled you couldn't have heeled she couldn't have heeled we couldn't have heeled you couldn't have heeled they couldn't have heeled	I couldn't have been heeling you couldn't have been heeling she couldn't have been heeling we couldn't have been heeling you couldn't have been heeling they couldn't have been heeling

Interrogative form

Simple form	V-ing form
could I heel? could you heel? could she heel? could we heel? could you heel? could they heel?	could I be heeling? could you be heeling? could she be heeling? could we be heeling? could you be heeling? could they be heeling?
Perfect	V-ing perfect
could I have heeled? could you have heeled? could she have heeled? could we have heeled? could you have heeled? could they have heeled?	could I have been heeling? could you have been heeling? could she have been heeling? could we have been heeling? could you have been heeling? could they have been heeling?

Interro-negative form

Simple form	V-ing form
couldn't I heel? couldn't you heel? couldn't she heel? couldn't we heel? couldn't you heel? couldn't they heel?	couldn't I be heeling? couldn't you be heeling? couldn't she be heeling? couldn't we be heeling? couldn't you be heeling? couldn't they be heeling?
Perfect	V-ing perfect
couldn't I have heeled? couldn't you have heeled? couldn't she have heeled? couldn't we have heeled? couldn't you have heeled? couldn't they have heeled?	couldn't I have been heeling? couldn't you have been heeling? couldn't she have been heeling? couldn't we have been heeling? couldn't you have been heeling? couldn't they have been heeling?