I could harden you could harden he could harden we could harden you could harden they could harden
Forma con V-ing
I could be hardening you could be hardening he could be hardening we could be hardening you could be hardening they could be hardening
Perfetto
I could have hardened you could have hardened he could have hardened we could have hardened you could have hardened they could have hardened
Perfetto con V-ing
I could have been hardening you could have been hardening he could have been hardening we could have been hardening you could have been hardening they could have been hardening
Negazione
Forma semplice
I could not harden you could not harden he could not harden we could not harden you could not harden they could not harden
Forma con V-ing
I could not be hardening you could not be hardening he could not be hardening we could not be hardening you could not be hardening they could not be hardening
Perfetto
I could not have hardened you could not have hardened he could not have hardened we could not have hardened you could not have hardened they could not have hardened
Perfetto con V-ing
I could not have been hardening you could not have been hardening he could not have been hardening we could not have been hardening you could not have been hardening they could not have been hardening
Forma interrogativa
Forma semplice
could I harden? could you harden? could he harden? could we harden? could you harden? could they harden?
Forma con V-ing
could I be hardening? could you be hardening? could he be hardening? could we be hardening? could you be hardening? could they be hardening?
Perfetto
could I have hardened? could you have hardened? could he have hardened? could we have hardened? could you have hardened? could they have hardened?
Perfetto con V-ing
could I have been hardening? could you have been hardening? could he have been hardening? could we have been hardening? could you have been hardening? could they have been hardening?
Forma interro-negativa
Forma semplice
could I not harden? could you not harden? could he not harden? could we not harden? could you not harden? could they not harden?
Forma con V-ing
could I not be hardening? could you not be hardening? could he not be hardening? could we not be hardening? could you not be hardening? could they not be hardening?
Perfetto
could I not have hardened? could you not have hardened? could he not have hardened? could we not have hardened? could you not have hardened? could they not have hardened?
Perfetto con V-ing
could I not have been hardening? could you not have been hardening? could he not have been hardening? could we not have been hardening? could you not have been hardening? could they not have been hardening?