could downgrade
Verbe régulier : downgrade - downgraded- downgraded
Traduction française : dévaloriser - rabaisser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could downgrade
you could downgrade
he could downgrade
we could downgrade
you could downgrade
they could downgrade 	I could be downgrading
you could be downgrading
he could be downgrading
we could be downgrading
you could be downgrading
they could be downgrading	I could have downgraded
you could have downgraded
he could have downgraded
we could have downgraded
you could have downgraded
they could have downgraded	I could have been downgrading
you could have been downgrading
he could have been downgrading
we could have been downgrading
you could have been downgrading
they could have been downgrading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not downgrade
you could not downgrade
he could not downgrade
we could not downgrade
you could not downgrade
they could not downgrade 	I could not be downgrading
you could not be downgrading
he could not be downgrading
we could not be downgrading
you could not be downgrading
they could not be downgrading	I could not have downgraded
you could not have downgraded
he could not have downgraded
we could not have downgraded
you could not have downgraded
they could not have downgraded	I could not have been downgrading
you could not have been downgrading
he could not have been downgrading
we could not have been downgrading
you could not have been downgrading
they could not have been downgrading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I downgrade?
could you downgrade?
could he downgrade?
could we downgrade?
could you downgrade?
could they downgrade? 	could I be downgrading?
could you be downgrading?
could he be downgrading?
could we be downgrading?
could you be downgrading?
could they be downgrading? 	could I have downgraded?
could you have downgraded?
could he have downgraded?
could we have downgraded?
could you have downgraded?
could they have downgraded? 	could I have been downgrading?
could you have been downgrading?
could he have been downgrading?
could we have been downgrading?
could you have been downgrading?
could they have been downgrading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not downgrade?
could you not downgrade?
could he not downgrade?
could we not downgrade?
could you not downgrade?
could they not downgrade? 	could I not be downgrading?
could you not be downgrading?
could he not be downgrading?
could we not be downgrading?
could you not be downgrading?
could they not be downgrading? 	could I not have downgraded?
could you not have downgraded?
could he not have downgraded?
could we not have downgraded?
could you not have downgraded?
could they not have downgraded? 	could I not have been downgrading?
could you not have been downgrading?
could he not have been downgrading?
could we not have been downgrading?
could you not have been downgrading?
could they not have been downgrading?