don't I sum? don't you sum? doesn't she sum? don't we sum? don't you sum? don't they sum?
Presente continuo
am I not summing? aren't you summing? isn't she summing? aren't we summing? aren't you summing? aren't they summing?
Preterito
didn't I sum? didn't you sum? didn't she sum? didn't we sum? didn't you sum? didn't they sum?
Preterite continua
wasn't I summing? weren't you summing? wasn't she summing? weren't we summing? weren't you summing? weren't they summing?
Presente perfetto
haven't I summed? haven't you summed? hasn't she summed? haven't we summed? haven't you summed? haven't they summed?
Presente perfetto continuo
haven't I been summing? haven't you been summing? hasn't she been summing? haven't we been summing? haven't you been summing? haven't they been summing?
Piuccheperfetto
hadn't I summed? hadn't you summed? hadn't she summed? hadn't we summed? hadn't you summed? hadn't they summed?
Piuccheperfetto continuo
hadn't I been summing? hadn't you been summing? hadn't she been summing? hadn't we been summing? hadn't you been summing? hadn't they been summing?
Futuro semplice
won't I sum? won't you sum? won't she sum? won't we sum? won't you sum? won't they sum?
Futuro continuo
won't I be summing? won't you be summing? won't she be summing? won't we be summing? won't you be summing? won't they be summing?
Futuro anteriore
won't I have summed? won't you have summed? won't she have summed? won't we have summed? won't you have summed? won't they have summed?
Futuro anteriore contínuo
won't I have been summing? won't you have been summing? won't she have been summing? won't we have been summing? won't you have been summing? won't they have been summing?
Condizionale
Presente
wouldn't I sum? wouldn't you sum? wouldn't she sum? wouldn't we sum? wouldn't you sum? wouldn't they sum?
Presente continuo
wouldn't I be summing? wouldn't you be summing? wouldn't she be summing? wouldn't we be summing? wouldn't you be summing? wouldn't they be summing?
Passato
wouldn't I have summed? wouldn't you have summed? wouldn't she have summed? wouldn't we have summed? wouldn't you have summed? wouldn't they have summed?
Passato continuo
wouldn't I have been summing? wouldn't you have been summing? wouldn't she have been summing? wouldn't we have been summing? wouldn't you have been summing? wouldn't they have been summing?