do I not powder? do you not powder? does she not powder? do we not powder? do you not powder? do they not powder?
Present continuous
am I not powdering? are you not powdering? is she not powdering? are we not powdering? are you not powdering? are they not powdering?
Preterite
did I not powder? did you not powder? did she not powder? did we not powder? did you not powder? did they not powder?
Preterite continuous
was I not powdering? were you not powdering? was she not powdering? were we not powdering? were you not powdering? were they not powdering?
Present perfect
have I not powdered? have you not powdered? has she not powdered? have we not powdered? have you not powdered? have they not powdered?
Present perfect continuous
have I not been powdering? have you not been powdering? has she not been powdering? have we not been powdering? have you not been powdering? have they not been powdering?
Pluperfect
had I not powdered? had you not powdered? had she not powdered? had we not powdered? had you not powdered? had they not powdered?
Pluperfect continuous
had I not been powdering? had you not been powdering? had she not been powdering? had we not been powdering? had you not been powdering? had they not been powdering?
Future
will I not powder? will you not powder? will she not powder? will we not powder? will you not powder? will they not powder?
Future continuous
will I not be powdering? will you not be powdering? will she not be powdering? will we not be powdering? will you not be powdering? will they not be powdering?
Future perfect
will I not have powdered? will you not have powdered? will she not have powdered? will we not have powdered? will you not have powdered? will they not have powdered?
Future perfect continuous
will I not have been powdering? will you not have been powdering? will she not have been powdering? will we not have been powdering? will you not have been powdering? will they not have been powdering?
Conditional
Present
would I not powder? would you not powder? would she not powder? would we not powder? would you not powder? would they not powder?
Present continuous
would I not be powdering? would you not be powdering? would she not be powdering? would we not be powdering? would you not be powdering? would they not be powdering?
Past
would I not have powdered? would you not have powdered? would she not have powdered? would we not have powdered? would you not have powdered? would they not have powdered?
Past continuous
would I not have been powdering? would you not have been powdering? would she not have been powdering? would we not have been powdering? would you not have been powdering? would they not have been powdering?