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