I could fulfill you could fulfill he could fulfill we could fulfill you could fulfill they could fulfill
Forma con V-ing
I could be fulfilling you could be fulfilling he could be fulfilling we could be fulfilling you could be fulfilling they could be fulfilling
Perfecto
I could have fulfilled you could have fulfilled he could have fulfilled we could have fulfilled you could have fulfilled they could have fulfilled
Perfecto con V-ing
I could have been fulfilling you could have been fulfilling he could have been fulfilling we could have been fulfilling you could have been fulfilling they could have been fulfilling
Negación
Forma simple
I could not fulfill you could not fulfill he could not fulfill we could not fulfill you could not fulfill they could not fulfill
Forma con V-ing
I could not be fulfilling you could not be fulfilling he could not be fulfilling we could not be fulfilling you could not be fulfilling they could not be fulfilling
Perfecto
I could not have fulfilled you could not have fulfilled he could not have fulfilled we could not have fulfilled you could not have fulfilled they could not have fulfilled
Perfecto con V-ing
I could not have been fulfilling you could not have been fulfilling he could not have been fulfilling we could not have been fulfilling you could not have been fulfilling they could not have been fulfilling
Forma interrogativa
Forma simple
could I fulfill? could you fulfill? could he fulfill? could we fulfill? could you fulfill? could they fulfill?
Forma con V-ing
could I be fulfilling? could you be fulfilling? could he be fulfilling? could we be fulfilling? could you be fulfilling? could they be fulfilling?
Perfecto
could I have fulfilled? could you have fulfilled? could he have fulfilled? could we have fulfilled? could you have fulfilled? could they have fulfilled?
Perfecto con V-ing
could I have been fulfilling? could you have been fulfilling? could he have been fulfilling? could we have been fulfilling? could you have been fulfilling? could they have been fulfilling?
Forma interro-negativa
Forma simple
could I not fulfill? could you not fulfill? could he not fulfill? could we not fulfill? could you not fulfill? could they not fulfill?
Forma con V-ing
could I not be fulfilling? could you not be fulfilling? could he not be fulfilling? could we not be fulfilling? could you not be fulfilling? could they not be fulfilling?
Perfecto
could I not have fulfilled? could you not have fulfilled? could he not have fulfilled? could we not have fulfilled? could you not have fulfilled? could they not have fulfilled?
Perfecto con V-ing
could I not have been fulfilling? could you not have been fulfilling? could he not have been fulfilling? could we not have been fulfilling? could you not have been fulfilling? could they not have been fulfilling?