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