I can slam you can slam she can slam we can slam you can slam they can slam
V-ing form
I can be slamming you can be slamming she can be slamming we can be slamming you can be slamming they can be slamming
Perfect
I can have slammed you can have slammed she can have slammed we can have slammed you can have slammed they can have slammed
V-ing perfect
I can have been slamming you can have been slamming she can have been slamming we can have been slamming you can have been slamming they can have been slamming
Negation
Simple form
I cannot slam you cannot slam she cannot slam we cannot slam you cannot slam they cannot slam
V-ing form
I cannot be slamming you cannot be slamming she cannot be slamming we cannot be slamming you cannot be slamming they cannot be slamming
Perfect
I cannot have slammed you cannot have slammed she cannot have slammed we cannot have slammed you cannot have slammed they cannot have slammed
V-ing perfect
I cannot have been slamming you cannot have been slamming she cannot have been slamming we cannot have been slamming you cannot have been slamming they cannot have been slamming
Interrogative form
Simple form
can I slam? can you slam? can she slam? can we slam? can you slam? can they slam?
V-ing form
can I be slamming? can you be slamming? can she be slamming? can we be slamming? can you be slamming? can they be slamming?
Perfect
can I have slammed? can you have slammed? can she have slammed? can we have slammed? can you have slammed? can they have slammed?
V-ing perfect
can I have been slamming? can you have been slamming? can she have been slamming? can we have been slamming? can you have been slamming? can they have been slamming?
Interro-negative form
Simple form
can I not slam? can you not slam? can she not slam? can we not slam? can you not slam? can they not slam?
V-ing form
can I not be slamming? can you not be slamming? can she not be slamming? can we not be slamming? can you not be slamming? can they not be slamming?
Perfect
can I not have slammed? can you not have slammed? can she not have slammed? can we not have slammed? can you not have slammed? can they not have slammed?
V-ing perfect
can I not have been slamming? can you not have been slamming? can she not have been slamming? can we not have been slamming? can you not have been slamming? can they not have been slamming?