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