don't I perdure? don't you perdure? doesn't he perdure? don't we perdure? don't you perdure? don't they perdure?
Presente contínuo
am I not perduring? aren't you perduring? isn't he perduring? aren't we perduring? aren't you perduring? aren't they perduring?
Pretérito
didn't I perdure? didn't you perdure? didn't he perdure? didn't we perdure? didn't you perdure? didn't they perdure?
Preterito contínuo
wasn't I perduring? weren't you perduring? wasn't he perduring? weren't we perduring? weren't you perduring? weren't they perduring?
Presente perfeito
haven't I perdured? haven't you perdured? hasn't he perdured? haven't we perdured? haven't you perdured? haven't they perdured?
Presente perfeito contínuo
haven't I been perduring? haven't you been perduring? hasn't he been perduring? haven't we been perduring? haven't you been perduring? haven't they been perduring?
Mais perfeito
hadn't I perdured? hadn't you perdured? hadn't he perdured? hadn't we perdured? hadn't you perdured? hadn't they perdured?
Contínuo mais perfeito
hadn't I been perduring? hadn't you been perduring? hadn't he been perduring? hadn't we been perduring? hadn't you been perduring? hadn't they been perduring?
Futuro
won't I perdure? won't you perdure? won't he perdure? won't we perdure? won't you perdure? won't they perdure?
Futuro contínuo
won't I be perduring? won't you be perduring? won't he be perduring? won't we be perduring? won't you be perduring? won't they be perduring?
futuro perfeito
won't I have perdured? won't you have perdured? won't he have perdured? won't we have perdured? won't you have perdured? won't they have perdured?
futuro perfeito contínuo
won't I have been perduring? won't you have been perduring? won't he have been perduring? won't we have been perduring? won't you have been perduring? won't they have been perduring?
Condicional
Presente
wouldn't I perdure? wouldn't you perdure? wouldn't he perdure? wouldn't we perdure? wouldn't you perdure? wouldn't they perdure?
Presente contínuo
wouldn't I be perduring? wouldn't you be perduring? wouldn't he be perduring? wouldn't we be perduring? wouldn't you be perduring? wouldn't they be perduring?
Passado
wouldn't I have perdured? wouldn't you have perdured? wouldn't he have perdured? wouldn't we have perdured? wouldn't you have perdured? wouldn't they have perdured?
Passado contínuo
wouldn't I have been perduring? wouldn't you have been perduring? wouldn't he have been perduring? wouldn't we have been perduring? wouldn't you have been perduring? wouldn't they have been perduring?