English verb conjugation
CAN SLAM

Regular verb: slam - slammed - slammed

Affirmation

Simple form	V-ing form
I can slam you can slam he can slam we can slam you can slam they can slam	I can be slamming you can be slamming he can be slamming we can be slamming you can be slamming they can be slamming
Perfect	V-ing perfect
I can have slammed you can have slammed he can have slammed we can have slammed you can have slammed they can have slammed	I can have been slamming you can have been slamming he can have been slamming we can have been slamming you can have been slamming they can have been slamming

Negation

Simple form	V-ing form
I can't slam you can't slam he can't slam we can't slam you can't slam they can't slam	I can't be slamming you can't be slamming he can't be slamming we can't be slamming you can't be slamming they can't be slamming
Perfect	V-ing perfect
I can't have slammed you can't have slammed he can't have slammed we can't have slammed you can't have slammed they can't have slammed	I can't have been slamming you can't have been slamming he can't have been slamming we can't have been slamming you can't have been slamming they can't have been slamming

Interrogative form

Simple form	V-ing form
can I slam? can you slam? can he slam? can we slam? can you slam? can they slam?	can I be slamming? can you be slamming? can he be slamming? can we be slamming? can you be slamming? can they be slamming?
Perfect	V-ing perfect
can I have slammed? can you have slammed? can he have slammed? can we have slammed? can you have slammed? can they have slammed?	can I have been slamming? can you have been slamming? can he have been slamming? can we have been slamming? can you have been slamming? can they have been slamming?

Interro-negative form

Simple form	V-ing form
can't I slam? can't you slam? can't he slam? can't we slam? can't you slam? can't they slam?	can't I be slamming? can't you be slamming? can't he be slamming? can't we be slamming? can't you be slamming? can't they be slamming?
Perfect	V-ing perfect
can't I have slammed? can't you have slammed? can't he have slammed? can't we have slammed? can't you have slammed? can't they have slammed?	can't I have been slamming? can't you have been slamming? can't he have been slamming? can't we have been slamming? can't you have been slamming? can't they have been slamming?