don't I derive? don't you derive? doesn't he derive? don't we derive? don't you derive? don't they derive?
Present continuous
am I not deriving? aren't you deriving? isn't he deriving? aren't we deriving? aren't you deriving? aren't they deriving?
Preterite
didn't I derive? didn't you derive? didn't he derive? didn't we derive? didn't you derive? didn't they derive?
Preterite continuous
wasn't I deriving? weren't you deriving? wasn't he deriving? weren't we deriving? weren't you deriving? weren't they deriving?
Present perfect
haven't I derived? haven't you derived? hasn't he derived? haven't we derived? haven't you derived? haven't they derived?
Present perfect continuous
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?
Pluperfect
hadn't I derived? hadn't you derived? hadn't he derived? hadn't we derived? hadn't you derived? hadn't they derived?
Pluperfect continuous
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?
Future
won't I derive? won't you derive? won't he derive? won't we derive? won't you derive? won't they derive?
Future continuous
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?
Future perfect
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?
Future perfect continuous
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?
Conditional
Present
wouldn't I derive? wouldn't you derive? wouldn't he derive? wouldn't we derive? wouldn't you derive? wouldn't they derive?
Present continuous
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?
Past
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?
Past continuous
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?