I could worsen you could worsen she could worsen we could worsen you could worsen they could worsen
Forme en V-ing
I could be worsening you could be worsening she could be worsening we could be worsening you could be worsening they could be worsening
Perfect
I could have worsened you could have worsened she 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 she could have been worsening we could have been worsening you could have been worsening they could have been worsening
Négation
Forme simple
I could not worsen you could not worsen she could not worsen we could not worsen you could not worsen they could not worsen
Forme en V-ing
I could not be worsening you could not be worsening she could not be worsening we could not be worsening you could not be worsening they could not be worsening
Perfect
I could not have worsened you could not have worsened she could not have worsened we could not have worsened you could not have worsened they could not have worsened
Perfect en V-ing
I could not have been worsening you could not have been worsening she could not have been worsening we could not have been worsening you could not have been worsening they could not have been worsening
Forme interrogative
Forme simple
could I worsen? could you worsen? could she worsen? could we worsen? could you worsen? could they worsen?
Forme en V-ing
could I be worsening? could you be worsening? could she be worsening? could we be worsening? could you be worsening? could they be worsening?
Perfect
could I have worsened? could you have worsened? could she 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 she have been worsening? could we have been worsening? could you have been worsening? could they have been worsening?
Forme interro-négative
Forme simple
could I not worsen? could you not worsen? could she not worsen? could we not worsen? could you not worsen? could they not worsen?
Forme en V-ing
could I not be worsening? could you not be worsening? could she not be worsening? could we not be worsening? could you not be worsening? could they not be worsening?
Perfect
could I not have worsened? could you not have worsened? could she not have worsened? could we not have worsened? could you not have worsened? could they not have worsened?
Perfect en V-ing
could I not have been worsening? could you not have been worsening? could she not have been worsening? could we not have been worsening? could you not have been worsening? could they not have been worsening?