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