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haven't I superseded? haven't you superseded? hasn't he superseded? haven't we superseded? haven't you superseded? haven't they superseded?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hadn't I superseded? hadn't you superseded? hadn't he superseded? hadn't we superseded? hadn't you superseded? hadn't they superseded?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won't I have superseded? won't you have superseded? won't he have superseded? won't we have superseded? won't you have superseded? won't they have superseded?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wouldn't I have superseded? wouldn't you have superseded? wouldn't he have superseded? wouldn't we have superseded? wouldn't you have superseded?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