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 couldn't potter you couldn't potter he couldn't potter we couldn't potter you couldn't potter they couldn't potter	I couldn't be pottering you couldn't be pottering he couldn't be pottering we couldn't be pottering you couldn't be pottering they couldn't be pottering
Perfect	V-ing perfect
I couldn't have pottered you couldn't have pottered he couldn't have pottered we couldn't have pottered you couldn't have pottered they couldn't have pottered	I couldn't have been pottering you couldn't have been pottering he couldn't have been pottering we couldn't have been pottering you couldn't have been pottering they couldn't 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
couldn't I potter? couldn't you potter? couldn't he potter? couldn't we potter? couldn't you potter? couldn't they potter?	couldn't I be pottering? couldn't you be pottering? couldn't he be pottering? couldn't we be pottering? couldn't you be pottering? couldn't they be pottering?
Perfect	V-ing perfect
couldn't I have pottered? couldn't you have pottered? couldn't he have pottered? couldn't we have pottered? couldn't you have pottered? couldn't they have pottered?	couldn't I have been pottering? couldn't you have been pottering? couldn't he have been pottering? couldn't we have been pottering? couldn't you have been pottering? couldn't they have been pottering?