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