don't I derive? don't you derive? doesn't he derive? don't we derive? don't you derive? don't they derive?
Presente continuo
am I not deriving? aren't you deriving? isn't he deriving? aren't we deriving? aren't you deriving? aren't they deriving?
Pretérito
didn't I derive? didn't you derive? didn't he derive? didn't we derive? didn't you derive? didn't they derive?
Pretérito continuo
wasn't I deriving? weren't you deriving? wasn't he deriving? weren't we deriving? weren't you deriving? weren't they deriving?
Presente perfecto
haven't I derived? haven't you derived? hasn't he derived? haven't we derived? haven't you derived? haven't they derived?
Presente perfecto continuo
haven't I been deriving? haven't you been deriving? hasn't he been deriving? haven't we been deriving? haven't you been deriving? haven't they been deriving?
Pluscuamperfecto
hadn't I derived? hadn't you derived? hadn't he derived? hadn't we derived? hadn't you derived? hadn't they derived?
Pluscuamperfecto continuo
hadn't I been deriving? hadn't you been deriving? hadn't he been deriving? hadn't we been deriving? hadn't you been deriving? hadn't they been deriving?
Futuro simple
won't I derive? won't you derive? won't he derive? won't we derive? won't you derive? won't they derive?
Futuro continuo
won't I be deriving? won't you be deriving? won't he be deriving? won't we be deriving? won't you be deriving? won't they be deriving?
Futuro perfecto
won't I have derived? won't you have derived? won't he have derived? won't we have derived? won't you have derived? won't they have derived?
Futuro perfecto contínuo
won't I have been deriving? won't you have been deriving? won't he have been deriving? won't we have been deriving? won't you have been deriving? won't they have been deriving?
Condicional
Presente
wouldn't I derive? wouldn't you derive? wouldn't he derive? wouldn't we derive? wouldn't you derive? wouldn't they derive?
Presente continuo
wouldn't I be deriving? wouldn't you be deriving? wouldn't he be deriving? wouldn't we be deriving? wouldn't you be deriving? wouldn't they be deriving?
Passado
wouldn't I have derived? wouldn't you have derived? wouldn't he have derived? wouldn't we have derived? wouldn't you have derived? wouldn't they have derived?
Passado continuo
wouldn't I have been deriving? wouldn't you have been deriving? wouldn't he have been deriving? wouldn't we have been deriving? wouldn't you have been deriving? wouldn't they have been deriving?