I could allow you could allow he could allow we could allow you could allow they could allow
Forma con V-ing
I could be allowing you could be allowing he could be allowing we could be allowing you could be allowing they could be allowing
Perfecto
I could have allowed you could have allowed he could have allowed we could have allowed you could have allowed they could have allowed
Perfecto con V-ing
I could have been allowing you could have been allowing he could have been allowing we could have been allowing you could have been allowing they could have been allowing
Negación
Forma simple
I could not allow you could not allow he could not allow we could not allow you could not allow they could not allow
Forma con V-ing
I could not be allowing you could not be allowing he could not be allowing we could not be allowing you could not be allowing they could not be allowing
Perfecto
I could not have allowed you could not have allowed he could not have allowed we could not have allowed you could not have allowed they could not have allowed
Perfecto con V-ing
I could not have been allowing you could not have been allowing he could not have been allowing we could not have been allowing you could not have been allowing they could not have been allowing
Forma interrogativa
Forma simple
could I allow? could you allow? could he allow? could we allow? could you allow? could they allow?
Forma con V-ing
could I be allowing? could you be allowing? could he be allowing? could we be allowing? could you be allowing? could they be allowing?
Perfecto
could I have allowed? could you have allowed? could he have allowed? could we have allowed? could you have allowed? could they have allowed?
Perfecto con V-ing
could I have been allowing? could you have been allowing? could he have been allowing? could we have been allowing? could you have been allowing? could they have been allowing?
Forma interro-negativa
Forma simple
could I not allow? could you not allow? could he not allow? could we not allow? could you not allow? could they not allow?
Forma con V-ing
could I not be allowing? could you not be allowing? could he not be allowing? could we not be allowing? could you not be allowing? could they not be allowing?
Perfecto
could I not have allowed? could you not have allowed? could he not have allowed? could we not have allowed? could you not have allowed? could they not have allowed?
Perfecto con V-ing
could I not have been allowing? could you not have been allowing? could he not have been allowing? could we not have been allowing? could you not have been allowing? could they not have been allowing?