don't I harden? don't you harden? doesn't she harden? don't we harden? don't you harden? don't they harden?
Presente continuo
am I not hardening? aren't you hardening? isn't she hardening? aren't we hardening? aren't you hardening? aren't they hardening?
Pretérito
didn't I harden? didn't you harden? didn't she harden? didn't we harden? didn't you harden? didn't they harden?
Pretérito continuo
wasn't I hardening? weren't you hardening? wasn't she hardening? weren't we hardening? weren't you hardening? weren't they hardening?
Presente perfecto
haven't I hardened? haven't you hardened? hasn't she hardened? haven't we hardened? haven't you hardened? haven't they hardened?
Presente perfecto continuo
haven't I been hardening? haven't you been hardening? hasn't she been hardening? haven't we been hardening? haven't you been hardening? haven't they been hardening?
Pluscuamperfecto
hadn't I hardened? hadn't you hardened? hadn't she hardened? hadn't we hardened? hadn't you hardened? hadn't they hardened?
Pluscuamperfecto continuo
hadn't I been hardening? hadn't you been hardening? hadn't she been hardening? hadn't we been hardening? hadn't you been hardening? hadn't they been hardening?
Futuro simple
won't I harden? won't you harden? won't she harden? won't we harden? won't you harden? won't they harden?
Futuro continuo
won't I be hardening? won't you be hardening? won't she be hardening? won't we be hardening? won't you be hardening? won't they be hardening?
Futuro perfecto
won't I have hardened? won't you have hardened? won't she have hardened? won't we have hardened? won't you have hardened? won't they have hardened?
Futuro perfecto contínuo
won't I have been hardening? won't you have been hardening? won't she have been hardening? won't we have been hardening? won't you have been hardening? won't they have been hardening?
Condicional
Presente
wouldn't I harden? wouldn't you harden? wouldn't she harden? wouldn't we harden? wouldn't you harden? wouldn't they harden?
Presente continuo
wouldn't I be hardening? wouldn't you be hardening? wouldn't she be hardening? wouldn't we be hardening? wouldn't you be hardening? wouldn't they be hardening?
Passado
wouldn't I have hardened? wouldn't you have hardened? wouldn't she have hardened? wouldn't we have hardened? wouldn't you have hardened? wouldn't they have hardened?
Passado continuo
wouldn't I have been hardening? wouldn't you have been hardening? wouldn't she have been hardening? wouldn't we have been hardening? wouldn't you have been hardening? wouldn't they have been hardening?