English verb conjugation
COULD DIE

Regular verb: die - died - died

Affirmation

Simple form	V-ing form
I could die you could die he could die we could die you could die they could die	I could be dying you could be dying he could be dying we could be dying you could be dying they could be dying
Perfect	V-ing perfect
I could have died you could have died he could have died we could have died you could have died they could have died	I could have been dying you could have been dying he could have been dying we could have been dying you could have been dying they could have been dying

Negation

Simple form	V-ing form
I could not die you could not die he could not die we could not die you could not die they could not die	I could not be dying you could not be dying he could not be dying we could not be dying you could not be dying they could not be dying
Perfect	V-ing perfect
I could not have died you could not have died he could not have died we could not have died you could not have died they could not have died	I could not have been dying you could not have been dying he could not have been dying we could not have been dying you could not have been dying they could not have been dying

Interrogative form

Simple form	V-ing form
could I die? could you die? could he die? could we die? could you die? could they die?	could I be dying? could you be dying? could he be dying? could we be dying? could you be dying? could they be dying?
Perfect	V-ing perfect
could I have died? could you have died? could he have died? could we have died? could you have died? could they have died?	could I have been dying? could you have been dying? could he have been dying? could we have been dying? could you have been dying? could they have been dying?

Interro-negative form

Simple form	V-ing form
could I not die? could you not die? could he not die? could we not die? could you not die? could they not die?	could I not be dying? could you not be dying? could he not be dying? could we not be dying? could you not be dying? could they not be dying?
Perfect	V-ing perfect
could I not have died? could you not have died? could he not have died? could we not have died? could you not have died? could they not have died?	could I not have been dying? could you not have been dying? could he not have been dying? could we not have been dying? could you not have been dying? could they not have been dying?