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