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