could aggrade
Verbo regular: aggrade - aggraded- aggraded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could aggrade
you could aggrade
he could aggrade
we could aggrade
you could aggrade
they could aggrade 	I could be aggrading
you could be aggrading
he could be aggrading
we could be aggrading
you could be aggrading
they could be aggrading	I could have aggraded
you could have aggraded
he could have aggraded
we could have aggraded
you could have aggraded
they could have aggraded	I could have been aggrading
you could have been aggrading
he could have been aggrading
we could have been aggrading
you could have been aggrading
they could have been aggrading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not aggrade
you could not aggrade
he could not aggrade
we could not aggrade
you could not aggrade
they could not aggrade 	I could not be aggrading
you could not be aggrading
he could not be aggrading
we could not be aggrading
you could not be aggrading
they could not be aggrading	I could not have aggraded
you could not have aggraded
he could not have aggraded
we could not have aggraded
you could not have aggraded
they could not have aggraded	I could not have been aggrading
you could not have been aggrading
he could not have been aggrading
we could not have been aggrading
you could not have been aggrading
they could not have been aggrading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I aggrade?
could you aggrade?
could he aggrade?
could we aggrade?
could you aggrade?
could they aggrade? 	could I be aggrading?
could you be aggrading?
could he be aggrading?
could we be aggrading?
could you be aggrading?
could they be aggrading? 	could I have aggraded?
could you have aggraded?
could he have aggraded?
could we have aggraded?
could you have aggraded?
could they have aggraded? 	could I have been aggrading?
could you have been aggrading?
could he have been aggrading?
could we have been aggrading?
could you have been aggrading?
could they have been aggrading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not aggrade?
could you not aggrade?
could he not aggrade?
could we not aggrade?
could you not aggrade?
could they not aggrade? 	could I not be aggrading?
could you not be aggrading?
could he not be aggrading?
could we not be aggrading?
could you not be aggrading?
could they not be aggrading? 	could I not have aggraded?
could you not have aggraded?
could he not have aggraded?
could we not have aggraded?
could you not have aggraded?
could they not have aggraded? 	could I not have been aggrading?
could you not have been aggrading?
could he not have been aggrading?
could we not have been aggrading?
could you not have been aggrading?
could they not have been aggrading?