could age
Verbo regular: age - aged- aged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could age
you could age
she could age
we could age
you could age
they could age 	I could be aging
you could be aging
she could be aging
we could be aging
you could be aging
they could be aging	I could have aged
you could have aged
she could have aged
we could have aged
you could have aged
they could have aged	I could have been aging
you could have been aging
she could have been aging
we could have been aging
you could have been aging
they could have been aging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not age
you could not age
she could not age
we could not age
you could not age
they could not age 	I could not be aging
you could not be aging
she could not be aging
we could not be aging
you could not be aging
they could not be aging	I could not have aged
you could not have aged
she could not have aged
we could not have aged
you could not have aged
they could not have aged	I could not have been aging
you could not have been aging
she could not have been aging
we could not have been aging
you could not have been aging
they could not have been aging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I age?
could you age?
could she age?
could we age?
could you age?
could they age? 	could I be aging?
could you be aging?
could she be aging?
could we be aging?
could you be aging?
could they be aging? 	could I have aged?
could you have aged?
could she have aged?
could we have aged?
could you have aged?
could they have aged? 	could I have been aging?
could you have been aging?
could she have been aging?
could we have been aging?
could you have been aging?
could they have been aging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not age?
could you not age?
could she not age?
could we not age?
could you not age?
could they not age? 	could I not be aging?
could you not be aging?
could she not be aging?
could we not be aging?
could you not be aging?
could they not be aging? 	could I not have aged?
could you not have aged?
could she not have aged?
could we not have aged?
could you not have aged?
could they not have aged? 	could I not have been aging?
could you not have been aging?
could she not have been aging?
could we not have been aging?
could you not have been aging?
could they not have been aging?