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