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