could intergrade
Verbo regular: intergrade - intergraded- intergraded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could intergrade
you could intergrade
he could intergrade
we could intergrade
you could intergrade
they could intergrade 	I could be intergrading
you could be intergrading
he could be intergrading
we could be intergrading
you could be intergrading
they could be intergrading	I could have intergraded
you could have intergraded
he could have intergraded
we could have intergraded
you could have intergraded
they could have intergraded	I could have been intergrading
you could have been intergrading
he could have been intergrading
we could have been intergrading
you could have been intergrading
they could have been intergrading	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not intergrade
you could not intergrade
he could not intergrade
we could not intergrade
you could not intergrade
they could not intergrade 	I could not be intergrading
you could not be intergrading
he could not be intergrading
we could not be intergrading
you could not be intergrading
they could not be intergrading	I could not have intergraded
you could not have intergraded
he could not have intergraded
we could not have intergraded
you could not have intergraded
they could not have intergraded	I could not have been intergrading
you could not have been intergrading
he could not have been intergrading
we could not have been intergrading
you could not have been intergrading
they could not have been intergrading	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I intergrade?
could you intergrade?
could he intergrade?
could we intergrade?
could you intergrade?
could they intergrade? 	could I be intergrading?
could you be intergrading?
could he be intergrading?
could we be intergrading?
could you be intergrading?
could they be intergrading? 	could I have intergraded?
could you have intergraded?
could he have intergraded?
could we have intergraded?
could you have intergraded?
could they have intergraded? 	could I have been intergrading?
could you have been intergrading?
could he have been intergrading?
could we have been intergrading?
could you have been intergrading?
could they have been intergrading? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not intergrade?
could you not intergrade?
could he not intergrade?
could we not intergrade?
could you not intergrade?
could they not intergrade? 	could I not be intergrading?
could you not be intergrading?
could he not be intergrading?
could we not be intergrading?
could you not be intergrading?
could they not be intergrading? 	could I not have intergraded?
could you not have intergraded?
could he not have intergraded?
could we not have intergraded?
could you not have intergraded?
could they not have intergraded? 	could I not have been intergrading?
could you not have been intergrading?
could he not have been intergrading?
could we not have been intergrading?
could you not have been intergrading?
could they not have been intergrading?