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