could degrade
Verbe régulier : degrade - degraded- degraded
Traduction française : dégrader - avilir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could degrade
you could degrade
he could degrade
we could degrade
you could degrade
they could degrade 	I could be degrading
you could be degrading
he could be degrading
we could be degrading
you could be degrading
they could be degrading	I could have degraded
you could have degraded
he could have degraded
we could have degraded
you could have degraded
they could have degraded	I could have been degrading
you could have been degrading
he could have been degrading
we could have been degrading
you could have been degrading
they could have been degrading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't degrade
you couldn't degrade
he couldn't degrade
we couldn't degrade
you couldn't degrade
they couldn't degrade 	I couldn't be degrading
you couldn't be degrading
he couldn't be degrading
we couldn't be degrading
you couldn't be degrading
they couldn't be degrading	I couldn't have degraded
you couldn't have degraded
he couldn't have degraded
we couldn't have degraded
you couldn't have degraded
they couldn't have degraded	I couldn't have been degrading
you couldn't have been degrading
he couldn't have been degrading
we couldn't have been degrading
you couldn't have been degrading
they couldn't have been degrading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I degrade?
could you degrade?
could he degrade?
could we degrade?
could you degrade?
could they degrade? 	could I be degrading?
could you be degrading?
could he be degrading?
could we be degrading?
could you be degrading?
could they be degrading? 	could I have degraded?
could you have degraded?
could he have degraded?
could we have degraded?
could you have degraded?
could they have degraded? 	could I have been degrading?
could you have been degrading?
could he have been degrading?
could we have been degrading?
could you have been degrading?
could they have been degrading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I degrade?
couldn't you degrade?
couldn't he degrade?
couldn't we degrade?
couldn't you degrade?
couldn't they degrade? 	couldn't I be degrading?
couldn't you be degrading?
couldn't he be degrading?
couldn't we be degrading?
couldn't you be degrading?
couldn't they be degrading? 	couldn't I have degraded?
couldn't you have degraded?
couldn't he have degraded?
couldn't we have degraded?
couldn't you have degraded?
couldn't they have degraded? 	couldn't I have been degrading?
couldn't you have been degrading?
couldn't he have been degrading?
couldn't we have been degrading?
couldn't you have been degrading?
couldn't they have been degrading?