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