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