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 contínuo
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?
Preterito contínuo
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 perfeito
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 perfeito contínuo
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?
Mais perfeito
hadn't I sired? hadn't you sired? hadn't he sired? hadn't we sired? hadn't you sired? hadn't they sired?
Contínuo mais perfeito
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
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 contínuo
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 perfeito
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 perfeito 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 contínuo
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 contínuo
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?