I could decelerate you could decelerate she could decelerate we could decelerate you could decelerate they could decelerate
Forme en V-ing
I could be decelerating you could be decelerating she could be decelerating we could be decelerating you could be decelerating they could be decelerating
Perfect
I could have decelerated you could have decelerated she could have decelerated we could have decelerated you could have decelerated they could have decelerated
Perfect en V-ing
I could have been decelerating you could have been decelerating she could have been decelerating we could have been decelerating you could have been decelerating they could have been decelerating
Négation
Forme simple
I couldn't decelerate you couldn't decelerate she couldn't decelerate we couldn't decelerate you couldn't decelerate they couldn't decelerate
Forme en V-ing
I couldn't be decelerating you couldn't be decelerating she couldn't be decelerating we couldn't be decelerating you couldn't be decelerating they couldn't be decelerating
Perfect
I couldn't have decelerated you couldn't have decelerated she couldn't have decelerated we couldn't have decelerated you couldn't have decelerated they couldn't have decelerated
Perfect en V-ing
I couldn't have been decelerating you couldn't have been decelerating she couldn't have been decelerating we couldn't have been decelerating you couldn't have been decelerating they couldn't have been decelerating
Forme interrogative
Forme simple
could I decelerate? could you decelerate? could she decelerate? could we decelerate? could you decelerate? could they decelerate?
Forme en V-ing
could I be decelerating? could you be decelerating? could she be decelerating? could we be decelerating? could you be decelerating? could they be decelerating?
Perfect
could I have decelerated? could you have decelerated? could she have decelerated? could we have decelerated? could you have decelerated? could they have decelerated?
Perfect en V-ing
could I have been decelerating? could you have been decelerating? could she have been decelerating? could we have been decelerating? could you have been decelerating? could they have been decelerating?
Forme interro-négative
Forme simple
couldn't I decelerate? couldn't you decelerate? couldn't she decelerate? couldn't we decelerate? couldn't you decelerate? couldn't they decelerate?
Forme en V-ing
couldn't I be decelerating? couldn't you be decelerating? couldn't she be decelerating? couldn't we be decelerating? couldn't you be decelerating? couldn't they be decelerating?
Perfect
couldn't I have decelerated? couldn't you have decelerated? couldn't she have decelerated? couldn't we have decelerated? couldn't you have decelerated? couldn't they have decelerated?
Perfect en V-ing
couldn't I have been decelerating? couldn't you have been decelerating? couldn't she have been decelerating? couldn't we have been decelerating? couldn't you have been decelerating? couldn't they have been decelerating?