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