English verb conjugation
COULD PEEN

Regular verb: peen - peened - peened

Affirmation

Simple form	V-ing form
I could peen you could peen she could peen we could peen you could peen they could peen	I could be peening you could be peening she 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 she 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 she 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 she 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 she 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 she 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 she 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 she peen? could we peen? could you peen? could they peen?	could I be peening? could you be peening? could she 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 she 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 she 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 she 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 she 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 she 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 she have been peening? couldn't we have been peening? couldn't you have been peening? couldn't they have been peening?