do I not sign? do you not sign? does he not sign? do we not sign? do you not sign? do they not sign?
Presente continuo
am I not signing? are you not signing? is he not signing? are we not signing? are you not signing? are they not signing?
Pretérito
did I not sign? did you not sign? did he not sign? did we not sign? did you not sign? did they not sign?
Pretérito continuo
was I not signing? were you not signing? was he not signing? were we not signing? were you not signing? were they not signing?
Presente perfecto
have I not signed? have you not signed? has he not signed? have we not signed? have you not signed? have they not signed?
Presente perfecto continuo
have I not been signing? have you not been signing? has he not been signing? have we not been signing? have you not been signing? have they not been signing?
Pluscuamperfecto
had I not signed? had you not signed? had he not signed? had we not signed? had you not signed? had they not signed?
Pluscuamperfecto continuo
had I not been signing? had you not been signing? had he not been signing? had we not been signing? had you not been signing? had they not been signing?
Futuro simple
will I not sign? will you not sign? will he not sign? will we not sign? will you not sign? will they not sign?
Futuro continuo
will I not be signing? will you not be signing? will he not be signing? will we not be signing? will you not be signing? will they not be signing?
Futuro perfecto
will I not have signed? will you not have signed? will he not have signed? will we not have signed? will you not have signed? will they not have signed?
Futuro perfecto contínuo
will I not have been signing? will you not have been signing? will he not have been signing? will we not have been signing? will you not have been signing? will they not have been signing?
Condicional
Presente
would I not sign? would you not sign? would he not sign? would we not sign? would you not sign? would they not sign?
Presente continuo
would I not be signing? would you not be signing? would he not be signing? would we not be signing? would you not be signing? would they not be signing?
Passado
would I not have signed? would you not have signed? would he not have signed? would we not have signed? would you not have signed? would they not have signed?
Passado continuo
would I not have been signing? would you not have been signing? would he not have been signing? would we not have been signing? would you not have been signing? would they not have been signing?