I could vegetate you could vegetate he could vegetate we could vegetate you could vegetate they could vegetate
Forme en V-ing
I could be vegetating you could be vegetating he could be vegetating we could be vegetating you could be vegetating they could be vegetating
Perfect
I could have vegetated you could have vegetated he could have vegetated we could have vegetated you could have vegetated they could have vegetated
Perfect en V-ing
I could have been vegetating you could have been vegetating he could have been vegetating we could have been vegetating you could have been vegetating they could have been vegetating
Négation
Forme simple
I could not vegetate you could not vegetate he could not vegetate we could not vegetate you could not vegetate they could not vegetate
Forme en V-ing
I could not be vegetating you could not be vegetating he could not be vegetating we could not be vegetating you could not be vegetating they could not be vegetating
Perfect
I could not have vegetated you could not have vegetated he could not have vegetated we could not have vegetated you could not have vegetated they could not have vegetated
Perfect en V-ing
I could not have been vegetating you could not have been vegetating he could not have been vegetating we could not have been vegetating you could not have been vegetating they could not have been vegetating
Forme interrogative
Forme simple
could I vegetate? could you vegetate? could he vegetate? could we vegetate? could you vegetate? could they vegetate?
Forme en V-ing
could I be vegetating? could you be vegetating? could he be vegetating? could we be vegetating? could you be vegetating? could they be vegetating?
Perfect
could I have vegetated? could you have vegetated? could he have vegetated? could we have vegetated? could you have vegetated? could they have vegetated?
Perfect en V-ing
could I have been vegetating? could you have been vegetating? could he have been vegetating? could we have been vegetating? could you have been vegetating? could they have been vegetating?
Forme interro-négative
Forme simple
could I not vegetate? could you not vegetate? could he not vegetate? could we not vegetate? could you not vegetate? could they not vegetate?
Forme en V-ing
could I not be vegetating? could you not be vegetating? could he not be vegetating? could we not be vegetating? could you not be vegetating? could they not be vegetating?
Perfect
could I not have vegetated? could you not have vegetated? could he not have vegetated? could we not have vegetated? could you not have vegetated? could they not have vegetated?
Perfect en V-ing
could I not have been vegetating? could you not have been vegetating? could he not have been vegetating? could we not have been vegetating? could you not have been vegetating? could they not have been vegetating?