I can collide you can collide he can collide we can collide you can collide they can collide
V-ing form
I can be colliding you can be colliding he can be colliding we can be colliding you can be colliding they can be colliding
Perfect
I can have collided you can have collided he can have collided we can have collided you can have collided they can have collided
V-ing perfect
I can have been colliding you can have been colliding he can have been colliding we can have been colliding you can have been colliding they can have been colliding
Negation
Simple form
I cannot collide you cannot collide he cannot collide we cannot collide you cannot collide they cannot collide
V-ing form
I cannot be colliding you cannot be colliding he cannot be colliding we cannot be colliding you cannot be colliding they cannot be colliding
Perfect
I cannot have collided you cannot have collided he cannot have collided we cannot have collided you cannot have collided they cannot have collided
V-ing perfect
I cannot have been colliding you cannot have been colliding he cannot have been colliding we cannot have been colliding you cannot have been colliding they cannot have been colliding
Interrogative form
Simple form
can I collide? can you collide? can he collide? can we collide? can you collide? can they collide?
V-ing form
can I be colliding? can you be colliding? can he be colliding? can we be colliding? can you be colliding? can they be colliding?
Perfect
can I have collided? can you have collided? can he have collided? can we have collided? can you have collided? can they have collided?
V-ing perfect
can I have been colliding? can you have been colliding? can he have been colliding? can we have been colliding? can you have been colliding? can they have been colliding?
Interro-negative form
Simple form
can I not collide? can you not collide? can he not collide? can we not collide? can you not collide? can they not collide?
V-ing form
can I not be colliding? can you not be colliding? can he not be colliding? can we not be colliding? can you not be colliding? can they not be colliding?
Perfect
can I not have collided? can you not have collided? can he not have collided? can we not have collided? can you not have collided? can they not have collided?
V-ing perfect
can I not have been colliding? can you not have been colliding? can he not have been colliding? can we not have been colliding? can you not have been colliding? can they not have been colliding?