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