do I not ski? do you not ski? does he not ski? do we not ski? do you not ski? do they not ski?
Presente contínuo
am I not skiing? are you not skiing? is he not skiing? are we not skiing? are you not skiing? are they not skiing?
Pretérito
did I not ski? did you not ski? did he not ski? did we not ski? did you not ski? did they not ski?
Preterito contínuo
was I not skiing? were you not skiing? was he not skiing? were we not skiing? were you not skiing? were they not skiing?
Presente perfeito
have I not skied? have you not skied? has he not skied? have we not skied? have you not skied? have they not skied?
Presente perfeito contínuo
have I not been skiing? have you not been skiing? has he not been skiing? have we not been skiing? have you not been skiing? have they not been skiing?
Mais perfeito
had I not skied? had you not skied? had he not skied? had we not skied? had you not skied? had they not skied?
Contínuo mais perfeito
had I not been skiing? had you not been skiing? had he not been skiing? had we not been skiing? had you not been skiing? had they not been skiing?
Futuro
will I not ski? will you not ski? will he not ski? will we not ski? will you not ski? will they not ski?
Futuro contínuo
will I not be skiing? will you not be skiing? will he not be skiing? will we not be skiing? will you not be skiing? will they not be skiing?
futuro perfeito
will I not have skied? will you not have skied? will he not have skied? will we not have skied? will you not have skied? will they not have skied?
futuro perfeito contínuo
will I not have been skiing? will you not have been skiing? will he not have been skiing? will we not have been skiing? will you not have been skiing? will they not have been skiing?
Condicional
Presente
would I not ski? would you not ski? would he not ski? would we not ski? would you not ski? would they not ski?
Presente contínuo
would I not be skiing? would you not be skiing? would he not be skiing? would we not be skiing? would you not be skiing? would they not be skiing?
Passado
would I not have skied? would you not have skied? would he not have skied? would we not have skied? would you not have skied? would they not have skied?
Passado contínuo
would I not have been skiing? would you not have been skiing? would he not have been skiing? would we not have been skiing? would you not have been skiing? would they not have been skiing?