English verb conjugation
COULD POTTER

Regular verb: potter - pottered - pottered

Affirmation

Simple form	V-ing form
I could potter you could potter he could potter we could potter you could potter they could potter	I could be pottering you could be pottering he could be pottering we could be pottering you could be pottering they could be pottering
Perfect	V-ing perfect
I could have pottered you could have pottered he could have pottered we could have pottered you could have pottered they could have pottered	I could have been pottering you could have been pottering he could have been pottering we could have been pottering you could have been pottering they could have been pottering

Negation

Simple form	V-ing form
I could not potter you could not potter he could not potter we could not potter you could not potter they could not potter	I could not be pottering you could not be pottering he could not be pottering we could not be pottering you could not be pottering they could not be pottering
Perfect	V-ing perfect
I could not have pottered you could not have pottered he could not have pottered we could not have pottered you could not have pottered they could not have pottered	I could not have been pottering you could not have been pottering he could not have been pottering we could not have been pottering you could not have been pottering they could not have been pottering

Interrogative form

Simple form	V-ing form
could I potter? could you potter? could he potter? could we potter? could you potter? could they potter?	could I be pottering? could you be pottering? could he be pottering? could we be pottering? could you be pottering? could they be pottering?
Perfect	V-ing perfect
could I have pottered? could you have pottered? could he have pottered? could we have pottered? could you have pottered? could they have pottered?	could I have been pottering? could you have been pottering? could he have been pottering? could we have been pottering? could you have been pottering? could they have been pottering?

Interro-negative form

Simple form	V-ing form
could I not potter? could you not potter? could he not potter? could we not potter? could you not potter? could they not potter?	could I not be pottering? could you not be pottering? could he not be pottering? could we not be pottering? could you not be pottering? could they not be pottering?
Perfect	V-ing perfect
could I not have pottered? could you not have pottered? could he not have pottered? could we not have pottered? could you not have pottered? could they not have pottered?	could I not have been pottering? could you not have been pottering? could he not have been pottering? could we not have been pottering? could you not have been pottering? could they not have been pottering?