English verb conjugation
CAN PEEN

Regular verb: peen - peened - peened

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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