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