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