I could festinate you could festinate he could festinate we could festinate you could festinate they could festinate
Forme en V-ing
I could be festinating you could be festinating he could be festinating we could be festinating you could be festinating they could be festinating
Perfect
I could have festinated you could have festinated he could have festinated we could have festinated you could have festinated they could have festinated
Perfect en V-ing
I could have been festinating you could have been festinating he could have been festinating we could have been festinating you could have been festinating they could have been festinating
Négation
Forme simple
I could not festinate you could not festinate he could not festinate we could not festinate you could not festinate they could not festinate
Forme en V-ing
I could not be festinating you could not be festinating he could not be festinating we could not be festinating you could not be festinating they could not be festinating
Perfect
I could not have festinated you could not have festinated he could not have festinated we could not have festinated you could not have festinated they could not have festinated
Perfect en V-ing
I could not have been festinating you could not have been festinating he could not have been festinating we could not have been festinating you could not have been festinating they could not have been festinating
Forme interrogative
Forme simple
could I festinate? could you festinate? could he festinate? could we festinate? could you festinate? could they festinate?
Forme en V-ing
could I be festinating? could you be festinating? could he be festinating? could we be festinating? could you be festinating? could they be festinating?
Perfect
could I have festinated? could you have festinated? could he have festinated? could we have festinated? could you have festinated? could they have festinated?
Perfect en V-ing
could I have been festinating? could you have been festinating? could he have been festinating? could we have been festinating? could you have been festinating? could they have been festinating?
Forme interro-négative
Forme simple
could I not festinate? could you not festinate? could he not festinate? could we not festinate? could you not festinate? could they not festinate?
Forme en V-ing
could I not be festinating? could you not be festinating? could he not be festinating? could we not be festinating? could you not be festinating? could they not be festinating?
Perfect
could I not have festinated? could you not have festinated? could he not have festinated? could we not have festinated? could you not have festinated? could they not have festinated?
Perfect en V-ing
could I not have been festinating? could you not have been festinating? could he not have been festinating? could we not have been festinating? could you not have been festinating? could they not have been festinating?