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