could call
Verbo regular: call - called- called

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could call
you could call
he could call
we could call
you could call
they could call 	I could be calling
you could be calling
he could be calling
we could be calling
you could be calling
they could be calling	I could have called
you could have called
he could have called
we could have called
you could have called
they could have called	I could have been calling
you could have been calling
he could have been calling
we could have been calling
you could have been calling
they could have been calling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not call
you could not call
he could not call
we could not call
you could not call
they could not call 	I could not be calling
you could not be calling
he could not be calling
we could not be calling
you could not be calling
they could not be calling	I could not have called
you could not have called
he could not have called
we could not have called
you could not have called
they could not have called	I could not have been calling
you could not have been calling
he could not have been calling
we could not have been calling
you could not have been calling
they could not have been calling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I call?
could you call?
could he call?
could we call?
could you call?
could they call? 	could I be calling?
could you be calling?
could he be calling?
could we be calling?
could you be calling?
could they be calling? 	could I have called?
could you have called?
could he have called?
could we have called?
could you have called?
could they have called? 	could I have been calling?
could you have been calling?
could he have been calling?
could we have been calling?
could you have been calling?
could they have been calling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not call?
could you not call?
could he not call?
could we not call?
could you not call?
could they not call? 	could I not be calling?
could you not be calling?
could he not be calling?
could we not be calling?
could you not be calling?
could they not be calling? 	could I not have called?
could you not have called?
could he not have called?
could we not have called?
could you not have called?
could they not have called? 	could I not have been calling?
could you not have been calling?
could he not have been calling?
could we not have been calling?
could you not have been calling?
could they not have been calling?