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