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