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