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