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