do I not teach? do you not teach? does he not teach? do we not teach? do you not teach? do they not teach?
Presente contínuo
am I not teaching? are you not teaching? is he not teaching? are we not teaching? are you not teaching? are they not teaching?
Pretérito
did I not teach? did you not teach? did he not teach? did we not teach? did you not teach? did they not teach?
Preterito contínuo
was I not teaching? were you not teaching? was he not teaching? were we not teaching? were you not teaching? were they not teaching?
Presente perfeito
have I not taught? have you not taught? has he not taught? have we not taught? have you not taught? have they not taught?
Presente perfeito contínuo
have I not been teaching? have you not been teaching? has he not been teaching? have we not been teaching? have you not been teaching? have they not been teaching?
Mais perfeito
had I not taught? had you not taught? had he not taught? had we not taught? had you not taught? had they not taught?
Contínuo mais perfeito
had I not been teaching? had you not been teaching? had he not been teaching? had we not been teaching? had you not been teaching? had they not been teaching?
Futuro
will I not teach? will you not teach? will he not teach? will we not teach? will you not teach? will they not teach?
Futuro contínuo
will I not be teaching? will you not be teaching? will he not be teaching? will we not be teaching? will you not be teaching? will they not be teaching?
futuro perfeito
will I not have taught? will you not have taught? will he not have taught? will we not have taught? will you not have taught? will they not have taught?
futuro perfeito contínuo
will I not have been teaching? will you not have been teaching? will he not have been teaching? will we not have been teaching? will you not have been teaching? will they not have been teaching?
Condicional
Presente
would I not teach? would you not teach? would he not teach? would we not teach? would you not teach? would they not teach?
Presente contínuo
would I not be teaching? would you not be teaching? would he not be teaching? would we not be teaching? would you not be teaching? would they not be teaching?
Passado
would I not have taught? would you not have taught? would he not have taught? would we not have taught? would you not have taught? would they not have taught?
Passado contínuo
would I not have been teaching? would you not have been teaching? would he not have been teaching? would we not have been teaching? would you not have been teaching? would they not have been teaching?