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