I could harshen you could harshen she could harshen we could harshen you could harshen they could harshen
Forme en V-ing
I could be harshening you could be harshening she could be harshening we could be harshening you could be harshening they could be harshening
Perfect
I could have harshened you could have harshened she could have harshened we could have harshened you could have harshened they could have harshened
Perfect en V-ing
I could have been harshening you could have been harshening she could have been harshening we could have been harshening you could have been harshening they could have been harshening
Négation
Forme simple
I could not harshen you could not harshen she could not harshen we could not harshen you could not harshen they could not harshen
Forme en V-ing
I could not be harshening you could not be harshening she could not be harshening we could not be harshening you could not be harshening they could not be harshening
Perfect
I could not have harshened you could not have harshened she could not have harshened we could not have harshened you could not have harshened they could not have harshened
Perfect en V-ing
I could not have been harshening you could not have been harshening she could not have been harshening we could not have been harshening you could not have been harshening they could not have been harshening
Forme interrogative
Forme simple
could I harshen? could you harshen? could she harshen? could we harshen? could you harshen? could they harshen?
Forme en V-ing
could I be harshening? could you be harshening? could she be harshening? could we be harshening? could you be harshening? could they be harshening?
Perfect
could I have harshened? could you have harshened? could she have harshened? could we have harshened? could you have harshened? could they have harshened?
Perfect en V-ing
could I have been harshening? could you have been harshening? could she have been harshening? could we have been harshening? could you have been harshening? could they have been harshening?
Forme interro-négative
Forme simple
could I not harshen? could you not harshen? could she not harshen? could we not harshen? could you not harshen? could they not harshen?
Forme en V-ing
could I not be harshening? could you not be harshening? could she not be harshening? could we not be harshening? could you not be harshening? could they not be harshening?
Perfect
could I not have harshened? could you not have harshened? could she not have harshened? could we not have harshened? could you not have harshened? could they not have harshened?
Perfect en V-ing
could I not have been harshening? could you not have been harshening? could she not have been harshening? could we not have been harshening? could you not have been harshening? could they not have been harshening?