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