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