I could utilize you could utilize he could utilize we could utilize you could utilize they could utilize
Forma con V-ing
I could be utilizing you could be utilizing he could be utilizing we could be utilizing you could be utilizing they could be utilizing
Perfecto
I could have utilized you could have utilized he could have utilized we could have utilized you could have utilized they could have utilized
Perfecto con V-ing
I could have been utilizing you could have been utilizing he could have been utilizing we could have been utilizing you could have been utilizing they could have been utilizing
Negación
Forma simple
I could not utilize you could not utilize he could not utilize we could not utilize you could not utilize they could not utilize
Forma con V-ing
I could not be utilizing you could not be utilizing he could not be utilizing we could not be utilizing you could not be utilizing they could not be utilizing
Perfecto
I could not have utilized you could not have utilized he could not have utilized we could not have utilized you could not have utilized they could not have utilized
Perfecto con V-ing
I could not have been utilizing you could not have been utilizing he could not have been utilizing we could not have been utilizing you could not have been utilizing they could not have been utilizing
Forma interrogativa
Forma simple
could I utilize? could you utilize? could he utilize? could we utilize? could you utilize? could they utilize?
Forma con V-ing
could I be utilizing? could you be utilizing? could he be utilizing? could we be utilizing? could you be utilizing? could they be utilizing?
Perfecto
could I have utilized? could you have utilized? could he have utilized? could we have utilized? could you have utilized? could they have utilized?
Perfecto con V-ing
could I have been utilizing? could you have been utilizing? could he have been utilizing? could we have been utilizing? could you have been utilizing? could they have been utilizing?
Forma interro-negativa
Forma simple
could I not utilize? could you not utilize? could he not utilize? could we not utilize? could you not utilize? could they not utilize?
Forma con V-ing
could I not be utilizing? could you not be utilizing? could he not be utilizing? could we not be utilizing? could you not be utilizing? could they not be utilizing?
Perfecto
could I not have utilized? could you not have utilized? could he not have utilized? could we not have utilized? could you not have utilized? could they not have utilized?
Perfecto con V-ing
could I not have been utilizing? could you not have been utilizing? could he not have been utilizing? could we not have been utilizing? could you not have been utilizing? could they not have been utilizing?