could slam
Verbo regular: slam - slammed- slammed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could slam
you could slam
she could slam
we could slam
you could slam
they could slam 	I could be slamming
you could be slamming
she could be slamming
we could be slamming
you could be slamming
they could be slamming	I could have slammed
you could have slammed
she could have slammed
we could have slammed
you could have slammed
they could have slammed	I could have been slamming
you could have been slamming
she could have been slamming
we could have been slamming
you could have been slamming
they could have been slamming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not slam
you could not slam
she could not slam
we could not slam
you could not slam
they could not slam 	I could not be slamming
you could not be slamming
she could not be slamming
we could not be slamming
you could not be slamming
they could not be slamming	I could not have slammed
you could not have slammed
she could not have slammed
we could not have slammed
you could not have slammed
they could not have slammed	I could not have been slamming
you could not have been slamming
she could not have been slamming
we could not have been slamming
you could not have been slamming
they could not have been slamming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I slam?
could you slam?
could she slam?
could we slam?
could you slam?
could they slam? 	could I be slamming?
could you be slamming?
could she be slamming?
could we be slamming?
could you be slamming?
could they be slamming? 	could I have slammed?
could you have slammed?
could she have slammed?
could we have slammed?
could you have slammed?
could they have slammed? 	could I have been slamming?
could you have been slamming?
could she have been slamming?
could we have been slamming?
could you have been slamming?
could they have been slamming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not slam?
could you not slam?
could she not slam?
could we not slam?
could you not slam?
could they not slam? 	could I not be slamming?
could you not be slamming?
could she not be slamming?
could we not be slamming?
could you not be slamming?
could they not be slamming? 	could I not have slammed?
could you not have slammed?
could she not have slammed?
could we not have slammed?
could you not have slammed?
could they not have slammed? 	could I not have been slamming?
could you not have been slamming?
could she not have been slamming?
could we not have been slamming?
could you not have been slamming?
could they not have been slamming?