I could oblige you could oblige she could oblige we could oblige you could oblige they could oblige
Forma con V-ing
I could be obliging you could be obliging she could be obliging we could be obliging you could be obliging they could be obliging
Perfecto
I could have obliged you could have obliged she could have obliged we could have obliged you could have obliged they could have obliged
Perfecto con V-ing
I could have been obliging you could have been obliging she could have been obliging we could have been obliging you could have been obliging they could have been obliging
Negación
Forma simple
I could not oblige you could not oblige she could not oblige we could not oblige you could not oblige they could not oblige
Forma con V-ing
I could not be obliging you could not be obliging she could not be obliging we could not be obliging you could not be obliging they could not be obliging
Perfecto
I could not have obliged you could not have obliged she could not have obliged we could not have obliged you could not have obliged they could not have obliged
Perfecto con V-ing
I could not have been obliging you could not have been obliging she could not have been obliging we could not have been obliging you could not have been obliging they could not have been obliging
Forma interrogativa
Forma simple
could I oblige? could you oblige? could she oblige? could we oblige? could you oblige? could they oblige?
Forma con V-ing
could I be obliging? could you be obliging? could she be obliging? could we be obliging? could you be obliging? could they be obliging?
Perfecto
could I have obliged? could you have obliged? could she have obliged? could we have obliged? could you have obliged? could they have obliged?
Perfecto con V-ing
could I have been obliging? could you have been obliging? could she have been obliging? could we have been obliging? could you have been obliging? could they have been obliging?
Forma interro-negativa
Forma simple
could I not oblige? could you not oblige? could she not oblige? could we not oblige? could you not oblige? could they not oblige?
Forma con V-ing
could I not be obliging? could you not be obliging? could she not be obliging? could we not be obliging? could you not be obliging? could they not be obliging?
Perfecto
could I not have obliged? could you not have obliged? could she not have obliged? could we not have obliged? could you not have obliged? could they not have obliged?
Perfecto con V-ing
could I not have been obliging? could you not have been obliging? could she not have been obliging? could we not have been obliging? could you not have been obliging? could they not have been obliging?