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