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