English verb conjugation
COULD CONFINE

Regular verb: confine - confined - confined

Affirmation

Simple form	V-ing form
I could confine you could confine he could confine we could confine you could confine they could confine	I could be confining you could be confining he 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 he 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 he 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 he 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 he 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 he 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 he 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 he confine? could we confine? could you confine? could they confine?	could I be confining? could you be confining? could he 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 he 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 he 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 he 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 he 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 he 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 he have been confining? couldn't we have been confining? couldn't you have been confining? couldn't they have been confining?