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