English verb conjugation
COULD LOSE

Irregular verb: lose - lost - lost

Affirmation

Simple form	V-ing form
I could lose you could lose she could lose we could lose you could lose they could lose	I could be losing you could be losing she could be losing we could be losing you could be losing they could be losing
Perfect	V-ing perfect
I could have lost you could have lost she could have lost we could have lost you could have lost they could have lost	I could have been losing you could have been losing she could have been losing we could have been losing you could have been losing they could have been losing

Negation

Simple form	V-ing form
I couldn't lose you couldn't lose she couldn't lose we couldn't lose you couldn't lose they couldn't lose	I couldn't be losing you couldn't be losing she couldn't be losing we couldn't be losing you couldn't be losing they couldn't be losing
Perfect	V-ing perfect
I couldn't have lost you couldn't have lost she couldn't have lost we couldn't have lost you couldn't have lost they couldn't have lost	I couldn't have been losing you couldn't have been losing she couldn't have been losing we couldn't have been losing you couldn't have been losing they couldn't have been losing

Interrogative form

Simple form	V-ing form
could I lose? could you lose? could she lose? could we lose? could you lose? could they lose?	could I be losing? could you be losing? could she be losing? could we be losing? could you be losing? could they be losing?
Perfect	V-ing perfect
could I have lost? could you have lost? could she have lost? could we have lost? could you have lost? could they have lost?	could I have been losing? could you have been losing? could she have been losing? could we have been losing? could you have been losing? could they have been losing?

Interro-negative form

Simple form	V-ing form
couldn't I lose? couldn't you lose? couldn't she lose? couldn't we lose? couldn't you lose? couldn't they lose?	couldn't I be losing? couldn't you be losing? couldn't she be losing? couldn't we be losing? couldn't you be losing? couldn't they be losing?
Perfect	V-ing perfect
couldn't I have lost? couldn't you have lost? couldn't she have lost? couldn't we have lost? couldn't you have lost? couldn't they have lost?	couldn't I have been losing? couldn't you have been losing? couldn't she have been losing? couldn't we have been losing? couldn't you have been losing? couldn't they have been losing?