English verb conjugation
COULD HEEL

Regular verb: heel - heeled - heeled

Affirmation

Simple form	V-ing form
I could heel you could heel he could heel we could heel you could heel they could heel	I could be heeling you could be heeling he 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 he 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 he 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 he 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 he 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 he 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 he 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 he heel? could we heel? could you heel? could they heel?	could I be heeling? could you be heeling? could he 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 he 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 he 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 he 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 he 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 he 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 he have been heeling? couldn't we have been heeling? couldn't you have been heeling? couldn't they have been heeling?