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