could oblige
Verbo regular: oblige - obliged- obliged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could oblige
you could oblige
he could oblige
we could oblige
you could oblige
they could oblige 	I could be obliging
you could be obliging
he could be obliging
we could be obliging
you could be obliging
they could be obliging	I could have obliged
you could have obliged
he could have obliged
we could have obliged
you could have obliged
they could have obliged	I could have been obliging
you could have been obliging
he could have been obliging
we could have been obliging
you could have been obliging
they could have been obliging	

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

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