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