English verb conjugation
COULD CONFINE

Regular verb: confine - confined - confined

Affirmation

Simple form	V-ing form
I could confine you could confine she could confine we could confine you could confine they could confine	I could be confining you could be confining she could be confining we could be confining you could be confining they could be confining
Perfect	V-ing perfect
I could have confined you could have confined she could have confined we could have confined you could have confined they could have confined	I could have been confining you could have been confining she could have been confining we could have been confining you could have been confining they could have been confining

Negation

Simple form	V-ing form
I couldn't confine you couldn't confine she couldn't confine we couldn't confine you couldn't confine they couldn't confine	I couldn't be confining you couldn't be confining she couldn't be confining we couldn't be confining you couldn't be confining they couldn't be confining
Perfect	V-ing perfect
I couldn't have confined you couldn't have confined she couldn't have confined we couldn't have confined you couldn't have confined they couldn't have confined	I couldn't have been confining you couldn't have been confining she couldn't have been confining we couldn't have been confining you couldn't have been confining they couldn't have been confining

Interrogative form

Simple form	V-ing form
could I confine? could you confine? could she confine? could we confine? could you confine? could they confine?	could I be confining? could you be confining? could she be confining? could we be confining? could you be confining? could they be confining?
Perfect	V-ing perfect
could I have confined? could you have confined? could she have confined? could we have confined? could you have confined? could they have confined?	could I have been confining? could you have been confining? could she have been confining? could we have been confining? could you have been confining? could they have been confining?

Interro-negative form

Simple form	V-ing form
couldn't I confine? couldn't you confine? couldn't she confine? couldn't we confine? couldn't you confine? couldn't they confine?	couldn't I be confining? couldn't you be confining? couldn't she be confining? couldn't we be confining? couldn't you be confining? couldn't they be confining?
Perfect	V-ing perfect
couldn't I have confined? couldn't you have confined? couldn't she have confined? couldn't we have confined? couldn't you have confined? couldn't they have confined?	couldn't I have been confining? couldn't you have been confining? couldn't she have been confining? couldn't we have been confining? couldn't you have been confining? couldn't they have been confining?