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