English verb conjugation
COULD PEEN

Regular verb: peen - peened - peened

Affirmation

Simple form	V-ing form
I could peen you could peen he could peen we could peen you could peen they could peen	I could be peening you could be peening he could be peening we could be peening you could be peening they could be peening
Perfect	V-ing perfect
I could have peened you could have peened he could have peened we could have peened you could have peened they could have peened	I could have been peening you could have been peening he could have been peening we could have been peening you could have been peening they could have been peening

Negation

Simple form	V-ing form
I couldn't peen you couldn't peen he couldn't peen we couldn't peen you couldn't peen they couldn't peen	I couldn't be peening you couldn't be peening he couldn't be peening we couldn't be peening you couldn't be peening they couldn't be peening
Perfect	V-ing perfect
I couldn't have peened you couldn't have peened he couldn't have peened we couldn't have peened you couldn't have peened they couldn't have peened	I couldn't have been peening you couldn't have been peening he couldn't have been peening we couldn't have been peening you couldn't have been peening they couldn't have been peening

Interrogative form

Simple form	V-ing form
could I peen? could you peen? could he peen? could we peen? could you peen? could they peen?	could I be peening? could you be peening? could he be peening? could we be peening? could you be peening? could they be peening?
Perfect	V-ing perfect
could I have peened? could you have peened? could he have peened? could we have peened? could you have peened? could they have peened?	could I have been peening? could you have been peening? could he have been peening? could we have been peening? could you have been peening? could they have been peening?

Interro-negative form

Simple form	V-ing form
couldn't I peen? couldn't you peen? couldn't he peen? couldn't we peen? couldn't you peen? couldn't they peen?	couldn't I be peening? couldn't you be peening? couldn't he be peening? couldn't we be peening? couldn't you be peening? couldn't they be peening?
Perfect	V-ing perfect
couldn't I have peened? couldn't you have peened? couldn't he have peened? couldn't we have peened? couldn't you have peened? couldn't they have peened?	couldn't I have been peening? couldn't you have been peening? couldn't he have been peening? couldn't we have been peening? couldn't you have been peening? couldn't they have been peening?