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