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 couldn't aggrade
you couldn't aggrade
he couldn't aggrade
we couldn't aggrade
you couldn't aggrade
they couldn't aggrade 	I couldn't be aggrading
you couldn't be aggrading
he couldn't be aggrading
we couldn't be aggrading
you couldn't be aggrading
they couldn't be aggrading	I couldn't have aggraded
you couldn't have aggraded
he couldn't have aggraded
we couldn't have aggraded
you couldn't have aggraded
they couldn't have aggraded	I couldn't have been aggrading
you couldn't have been aggrading
he couldn't have been aggrading
we couldn't have been aggrading
you couldn't have been aggrading
they couldn't 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 	
couldn't I aggrade?
couldn't you aggrade?
couldn't he aggrade?
couldn't we aggrade?
couldn't you aggrade?
couldn't they aggrade? 	couldn't I be aggrading?
couldn't you be aggrading?
couldn't he be aggrading?
couldn't we be aggrading?
couldn't you be aggrading?
couldn't they be aggrading? 	couldn't I have aggraded?
couldn't you have aggraded?
couldn't he have aggraded?
couldn't we have aggraded?
couldn't you have aggraded?
couldn't they have aggraded? 	couldn't I have been aggrading?
couldn't you have been aggrading?
couldn't he have been aggrading?
couldn't we have been aggrading?
couldn't you have been aggrading?
couldn't they have been aggrading?