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