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