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