English verb conjugation
COULD COLLIDE

Regular verb: collide - collided - collided

Affirmation

Simple form	V-ing form
I could collide you could collide he could collide we could collide you could collide they could collide	I could be colliding you could be colliding he could be colliding we could be colliding you could be colliding they could be colliding
Perfect	V-ing perfect
I could have collided you could have collided he could have collided we could have collided you could have collided they could have collided	I could have been colliding you could have been colliding he could have been colliding we could have been colliding you could have been colliding they could have been colliding

Negation

Simple form	V-ing form
I could not collide you could not collide he could not collide we could not collide you could not collide they could not collide	I could not be colliding you could not be colliding he could not be colliding we could not be colliding you could not be colliding they could not be colliding
Perfect	V-ing perfect
I could not have collided you could not have collided he could not have collided we could not have collided you could not have collided they could not have collided	I could not have been colliding you could not have been colliding he could not have been colliding we could not have been colliding you could not have been colliding they could not have been colliding

Interrogative form

Simple form	V-ing form
could I collide? could you collide? could he collide? could we collide? could you collide? could they collide?	could I be colliding? could you be colliding? could he be colliding? could we be colliding? could you be colliding? could they be colliding?
Perfect	V-ing perfect
could I have collided? could you have collided? could he have collided? could we have collided? could you have collided? could they have collided?	could I have been colliding? could you have been colliding? could he have been colliding? could we have been colliding? could you have been colliding? could they have been colliding?

Interro-negative form

Simple form	V-ing form
could I not collide? could you not collide? could he not collide? could we not collide? could you not collide? could they not collide?	could I not be colliding? could you not be colliding? could he not be colliding? could we not be colliding? could you not be colliding? could they not be colliding?
Perfect	V-ing perfect
could I not have collided? could you not have collided? could he not have collided? could we not have collided? could you not have collided? could they not have collided?	could I not have been colliding? could you not have been colliding? could he not have been colliding? could we not have been colliding? could you not have been colliding? could they not have been colliding?