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