do I sum? do you sum? does she sum? do we sum? do you sum? do they sum?
Presente continuo
am I summing? are you summing? is she summing? are we summing? are you summing? are they summing?
Pretérito
did I sum? did you sum? did she sum? did we sum? did you sum? did they sum?
Pretérito continuo
was I summing? were you summing? was she summing? were we summing? were you summing? were they summing?
Presente perfecto
have I summed? have you summed? has she summed? have we summed? have you summed? have they summed?
Presente perfecto continuo
have I been summing? have you been summing? has she been summing? have we been summing? have you been summing? have they been summing?
Pluscuamperfecto
had I summed? had you summed? had she summed? had we summed? had you summed? had they summed?
Pluscuamperfecto continuo
had I been summing? had you been summing? had she been summing? had we been summing? had you been summing? had they been summing?
Futuro simple
will I sum? will you sum? will she sum? will we sum? will you sum? will they sum?
Futuro continuo
will I be summing? will you be summing? will she be summing? will we be summing? will you be summing? will they be summing?
Futuro perfecto
will I have summed? will you have summed? will she have summed? will we have summed? will you have summed? will they have summed?
Futuro perfecto contínuo
will I have been summing? will you have been summing? will she have been summing? will we have been summing? will you have been summing? will they have been summing?
Condicional
Presente
would I sum? would you sum? would she sum? would we sum? would you sum? would they sum?
Presente continuo
would I be summing? would you be summing? would she be summing? would we be summing? would you be summing? would they be summing?
Passado
would I have summed? would you have summed? would she have summed? would we have summed? would you have summed? would they have summed?
Passado continuo
would I have been summing? would you have been summing? would she have been summing? would we have been summing? would you have been summing? would they have been summing?