don't I author? don't you author? doesn't she author? don't we author? don't you author? don't they author?
Presente contínuo
am I not authoring? aren't you authoring? isn't she authoring? aren't we authoring? aren't you authoring? aren't they authoring?
Pretérito
didn't I author? didn't you author? didn't she author? didn't we author? didn't you author? didn't they author?
Preterito contínuo
wasn't I authoring? weren't you authoring? wasn't she authoring? weren't we authoring? weren't you authoring? weren't they authoring?
Presente perfeito
haven't I authored? haven't you authored? hasn't she authored? haven't we authored? haven't you authored? haven't they authored?
Presente perfeito contínuo
haven't I been authoring? haven't you been authoring? hasn't she been authoring? haven't we been authoring? haven't you been authoring? haven't they been authoring?
Mais perfeito
hadn't I authored? hadn't you authored? hadn't she authored? hadn't we authored? hadn't you authored? hadn't they authored?
Contínuo mais perfeito
hadn't I been authoring? hadn't you been authoring? hadn't she been authoring? hadn't we been authoring? hadn't you been authoring? hadn't they been authoring?
Futuro
won't I author? won't you author? won't she author? won't we author? won't you author? won't they author?
Futuro contínuo
won't I be authoring? won't you be authoring? won't she be authoring? won't we be authoring? won't you be authoring? won't they be authoring?
futuro perfeito
won't I have authored? won't you have authored? won't she have authored? won't we have authored? won't you have authored? won't they have authored?
futuro perfeito contínuo
won't I have been authoring? won't you have been authoring? won't she have been authoring? won't we have been authoring? won't you have been authoring? won't they have been authoring?
Condicional
Presente
wouldn't I author? wouldn't you author? wouldn't she author? wouldn't we author? wouldn't you author? wouldn't they author?
Presente contínuo
wouldn't I be authoring? wouldn't you be authoring? wouldn't she be authoring? wouldn't we be authoring? wouldn't you be authoring? wouldn't they be authoring?
Passado
wouldn't I have authored? wouldn't you have authored? wouldn't she have authored? wouldn't we have authored? wouldn't you have authored? wouldn't they have authored?
Passado contínuo
wouldn't I have been authoring? wouldn't you have been authoring? wouldn't she have been authoring? wouldn't we have been authoring? wouldn't you have been authoring? wouldn't they have been authoring?