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 can't collide you can't collide he can't collide we can't collide you can't collide they can't collide
V-ing form
I can't be colliding you can't be colliding he can't be colliding we can't be colliding you can't be colliding they can't be colliding
Perfect
I can't have collided you can't have collided he can't have collided we can't have collided you can't have collided they can't have collided
V-ing perfect
I can't have been colliding you can't have been colliding he can't have been colliding we can't have been colliding you can't have been colliding they can't 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't I collide? can't you collide? can't he collide? can't we collide? can't you collide? can't they collide?
V-ing form
can't I be colliding? can't you be colliding? can't he be colliding? can't we be colliding? can't you be colliding? can't they be colliding?
Perfect
can't I have collided? can't you have collided? can't he have collided? can't we have collided? can't you have collided? can't they have collided?
V-ing perfect
can't I have been colliding? can't you have been colliding? can't he have been colliding? can't we have been colliding? can't you have been colliding? can't they have been colliding?