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