don't I scratch? don't you scratch? doesn't she scratch? don't we scratch? don't you scratch? don't they scratch?
Present continuous
am I not scratching? aren't you scratching? isn't she scratching? aren't we scratching? aren't you scratching? aren't they scratching?
Preterite
didn't I scratch? didn't you scratch? didn't she scratch? didn't we scratch? didn't you scratch? didn't they scratch?
Preterite continuous
wasn't I scratching? weren't you scratching? wasn't she scratching? weren't we scratching? weren't you scratching? weren't they scratching?
Present perfect
haven't I scratched? haven't you scratched? hasn't she scratched? haven't we scratched? haven't you scratched? haven't they scratched?
Present perfect continuous
haven't I been scratching? haven't you been scratching? hasn't she been scratching? haven't we been scratching? haven't you been scratching? haven't they been scratching?
Pluperfect
hadn't I scratched? hadn't you scratched? hadn't she scratched? hadn't we scratched? hadn't you scratched? hadn't they scratched?
Pluperfect continuous
hadn't I been scratching? hadn't you been scratching? hadn't she been scratching? hadn't we been scratching? hadn't you been scratching? hadn't they been scratching?
Future
won't I scratch? won't you scratch? won't she scratch? won't we scratch? won't you scratch? won't they scratch?
Future continuous
won't I be scratching? won't you be scratching? won't she be scratching? won't we be scratching? won't you be scratching? won't they be scratching?
Future perfect
won't I have scratched? won't you have scratched? won't she have scratched? won't we have scratched? won't you have scratched? won't they have scratched?
Future perfect continuous
won't I have been scratching? won't you have been scratching? won't she have been scratching? won't we have been scratching? won't you have been scratching? won't they have been scratching?
Conditional
Present
wouldn't I scratch? wouldn't you scratch? wouldn't she scratch? wouldn't we scratch? wouldn't you scratch? wouldn't they scratch?
Present continuous
wouldn't I be scratching? wouldn't you be scratching? wouldn't she be scratching? wouldn't we be scratching? wouldn't you be scratching? wouldn't they be scratching?
Past
wouldn't I have scratched? wouldn't you have scratched? wouldn't she have scratched? wouldn't we have scratched? wouldn't you have scratched? wouldn't they have scratched?
Past continuous
wouldn't I have been scratching? wouldn't you have been scratching? wouldn't she have been scratching? wouldn't we have been scratching? wouldn't you have been scratching? wouldn't they have been scratching?