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