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