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 contínuo
am I not summing? aren't you summing? isn't she summing? aren't we summing? aren't you summing? aren't they summing?
Pretérito
didn't I sum? didn't you sum? didn't she sum? didn't we sum? didn't you sum? didn't they sum?
Preterito contínuo
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 perfeito
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 perfeito contínuo
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?
Mais perfeito
hadn't I summed? hadn't you summed? hadn't she summed? hadn't we summed? hadn't you summed? hadn't they summed?
Contínuo mais perfeito
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
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 contínuo
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 perfeito
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 perfeito 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?
Condicional
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 contínuo
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?
Passado
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?
Passado contínuo
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?