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