do I not brush? do you not brush? does he not brush? do we not brush? do you not brush? do they not brush?
Present continuous
am I not brushing? are you not brushing? is he not brushing? are we not brushing? are you not brushing? are they not brushing?
Preterite
did I not brush? did you not brush? did he not brush? did we not brush? did you not brush? did they not brush?
Preterite continuous
was I not brushing? were you not brushing? was he not brushing? were we not brushing? were you not brushing? were they not brushing?
Present perfect
have I not brushed? have you not brushed? has he not brushed? have we not brushed? have you not brushed? have they not brushed?
Present perfect continuous
have I not been brushing? have you not been brushing? has he not been brushing? have we not been brushing? have you not been brushing? have they not been brushing?
Pluperfect
had I not brushed? had you not brushed? had he not brushed? had we not brushed? had you not brushed? had they not brushed?
Pluperfect continuous
had I not been brushing? had you not been brushing? had he not been brushing? had we not been brushing? had you not been brushing? had they not been brushing?
Future
will I not brush? will you not brush? will he not brush? will we not brush? will you not brush? will they not brush?
Future continuous
will I not be brushing? will you not be brushing? will he not be brushing? will we not be brushing? will you not be brushing? will they not be brushing?
Future perfect
will I not have brushed? will you not have brushed? will he not have brushed? will we not have brushed? will you not have brushed? will they not have brushed?
Future perfect continuous
will I not have been brushing? will you not have been brushing? will he not have been brushing? will we not have been brushing? will you not have been brushing? will they not have been brushing?
Conditional
Present
would I not brush? would you not brush? would he not brush? would we not brush? would you not brush? would they not brush?
Present continuous
would I not be brushing? would you not be brushing? would he not be brushing? would we not be brushing? would you not be brushing? would they not be brushing?
Past
would I not have brushed? would you not have brushed? would he not have brushed? would we not have brushed? would you not have brushed? would they not have brushed?
Past continuous
would I not have been brushing? would you not have been brushing? would he not have been brushing? would we not have been brushing? would you not have been brushing? would they not have been brushing?