I could flute you could flute he could flute we could flute you could flute they could flute
Forme en V-ing
I could be fluting you could be fluting he could be fluting we could be fluting you could be fluting they could be fluting
Perfect
I could have fluted you could have fluted he could have fluted we could have fluted you could have fluted they could have fluted
Perfect en V-ing
I could have been fluting you could have been fluting he could have been fluting we could have been fluting you could have been fluting they could have been fluting
Négation
Forme simple
I couldn't flute you couldn't flute he couldn't flute we couldn't flute you couldn't flute they couldn't flute
Forme en V-ing
I couldn't be fluting you couldn't be fluting he couldn't be fluting we couldn't be fluting you couldn't be fluting they couldn't be fluting
Perfect
I couldn't have fluted you couldn't have fluted he couldn't have fluted we couldn't have fluted you couldn't have fluted they couldn't have fluted
Perfect en V-ing
I couldn't have been fluting you couldn't have been fluting he couldn't have been fluting we couldn't have been fluting you couldn't have been fluting they couldn't have been fluting
Forme interrogative
Forme simple
could I flute? could you flute? could he flute? could we flute? could you flute? could they flute?
Forme en V-ing
could I be fluting? could you be fluting? could he be fluting? could we be fluting? could you be fluting? could they be fluting?
Perfect
could I have fluted? could you have fluted? could he have fluted? could we have fluted? could you have fluted? could they have fluted?
Perfect en V-ing
could I have been fluting? could you have been fluting? could he have been fluting? could we have been fluting? could you have been fluting? could they have been fluting?
Forme interro-négative
Forme simple
couldn't I flute? couldn't you flute? couldn't he flute? couldn't we flute? couldn't you flute? couldn't they flute?
Forme en V-ing
couldn't I be fluting? couldn't you be fluting? couldn't he be fluting? couldn't we be fluting? couldn't you be fluting? couldn't they be fluting?
Perfect
couldn't I have fluted? couldn't you have fluted? couldn't he have fluted? couldn't we have fluted? couldn't you have fluted? couldn't they have fluted?
Perfect en V-ing
couldn't I have been fluting? couldn't you have been fluting? couldn't he have been fluting? couldn't we have been fluting? couldn't you have been fluting? couldn't they have been fluting?