I could cone you could cone he could cone we could cone you could cone they could cone
Forma con V-ing
I could be coning you could be coning he could be coning we could be coning you could be coning they could be coning
Perfecto
I could have coned you could have coned he could have coned we could have coned you could have coned they could have coned
Perfecto con V-ing
I could have been coning you could have been coning he could have been coning we could have been coning you could have been coning they could have been coning
Negación
Forma simple
I could not cone you could not cone he could not cone we could not cone you could not cone they could not cone
Forma con V-ing
I could not be coning you could not be coning he could not be coning we could not be coning you could not be coning they could not be coning
Perfecto
I could not have coned you could not have coned he could not have coned we could not have coned you could not have coned they could not have coned
Perfecto con V-ing
I could not have been coning you could not have been coning he could not have been coning we could not have been coning you could not have been coning they could not have been coning
Forma interrogativa
Forma simple
could I cone? could you cone? could he cone? could we cone? could you cone? could they cone?
Forma con V-ing
could I be coning? could you be coning? could he be coning? could we be coning? could you be coning? could they be coning?
Perfecto
could I have coned? could you have coned? could he have coned? could we have coned? could you have coned? could they have coned?
Perfecto con V-ing
could I have been coning? could you have been coning? could he have been coning? could we have been coning? could you have been coning? could they have been coning?
Forma interro-negativa
Forma simple
could I not cone? could you not cone? could he not cone? could we not cone? could you not cone? could they not cone?
Forma con V-ing
could I not be coning? could you not be coning? could he not be coning? could we not be coning? could you not be coning? could they not be coning?
Perfecto
could I not have coned? could you not have coned? could he not have coned? could we not have coned? could you not have coned? could they not have coned?
Perfecto con V-ing
could I not have been coning? could you not have been coning? could he not have been coning? could we not have been coning? could you not have been coning? could they not have been coning?