I could sport you could sport he could sport we could sport you could sport they could sport
Forma con V-ing
I could be sporting you could be sporting he could be sporting we could be sporting you could be sporting they could be sporting
Perfecto
I could have sported you could have sported he could have sported we could have sported you could have sported they could have sported
Perfecto con V-ing
I could have been sporting you could have been sporting he could have been sporting we could have been sporting you could have been sporting they could have been sporting
Negación
Forma simple
I could not sport you could not sport he could not sport we could not sport you could not sport they could not sport
Forma con V-ing
I could not be sporting you could not be sporting he could not be sporting we could not be sporting you could not be sporting they could not be sporting
Perfecto
I could not have sported you could not have sported he could not have sported we could not have sported you could not have sported they could not have sported
Perfecto con V-ing
I could not have been sporting you could not have been sporting he could not have been sporting we could not have been sporting you could not have been sporting they could not have been sporting
Forma interrogativa
Forma simple
could I sport? could you sport? could he sport? could we sport? could you sport? could they sport?
Forma con V-ing
could I be sporting? could you be sporting? could he be sporting? could we be sporting? could you be sporting? could they be sporting?
Perfecto
could I have sported? could you have sported? could he have sported? could we have sported? could you have sported? could they have sported?
Perfecto con V-ing
could I have been sporting? could you have been sporting? could he have been sporting? could we have been sporting? could you have been sporting? could they have been sporting?
Forma interro-negativa
Forma simple
could I not sport? could you not sport? could he not sport? could we not sport? could you not sport? could they not sport?
Forma con V-ing
could I not be sporting? could you not be sporting? could he not be sporting? could we not be sporting? could you not be sporting? could they not be sporting?
Perfecto
could I not have sported? could you not have sported? could he not have sported? could we not have sported? could you not have sported? could they not have sported?
Perfecto con V-ing
could I not have been sporting? could you not have been sporting? could he not have been sporting? could we not have been sporting? could you not have been sporting? could they not have been sporting?