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