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