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