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