don't I sing? don't you sing? doesn't she sing? don't we sing? don't you sing? don't they sing?
Presente continuo
am I not singing? aren't you singing? isn't she singing? aren't we singing? aren't you singing? aren't they singing?
Pretérito
didn't I sing? didn't you sing? didn't she sing? didn't we sing? didn't you sing? didn't they sing?
Pretérito continuo
wasn't I singing? weren't you singing? wasn't she singing? weren't we singing? weren't you singing? weren't they singing?
Presente perfecto
haven't I sung? haven't you sung? hasn't she sung? haven't we sung? haven't you sung? haven't they sung?
Presente perfecto continuo
haven't I been singing? haven't you been singing? hasn't she been singing? haven't we been singing? haven't you been singing? haven't they been singing?
Pluscuamperfecto
hadn't I sung? hadn't you sung? hadn't she sung? hadn't we sung? hadn't you sung? hadn't they sung?
Pluscuamperfecto continuo
hadn't I been singing? hadn't you been singing? hadn't she been singing? hadn't we been singing? hadn't you been singing? hadn't they been singing?
Futuro simple
won't I sing? won't you sing? won't she sing? won't we sing? won't you sing? won't they sing?
Futuro continuo
won't I be singing? won't you be singing? won't she be singing? won't we be singing? won't you be singing? won't they be singing?
Futuro perfecto
won't I have sung? won't you have sung? won't she have sung? won't we have sung? won't you have sung? won't they have sung?
Futuro perfecto contínuo
won't I have been singing? won't you have been singing? won't she have been singing? won't we have been singing? won't you have been singing? won't they have been singing?
Condicional
Presente
wouldn't I sing? wouldn't you sing? wouldn't she sing? wouldn't we sing? wouldn't you sing? wouldn't they sing?
Presente continuo
wouldn't I be singing? wouldn't you be singing? wouldn't she be singing? wouldn't we be singing? wouldn't you be singing? wouldn't they be singing?
Passado
wouldn't I have sung? wouldn't you have sung? wouldn't she have sung? wouldn't we have sung? wouldn't you have sung? wouldn't they have sung?
Passado continuo
wouldn't I have been singing? wouldn't you have been singing? wouldn't she have been singing? wouldn't we have been singing? wouldn't you have been singing? wouldn't they have been singing?