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