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 continuo
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?
Pretérito continuo
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 perfecto
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 perfecto continuo
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?
Pluscuamperfecto
hadn't I refined? hadn't you refined? hadn't he refined? hadn't we refined? hadn't you refined? hadn't they refined?
Pluscuamperfecto continuo
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 simple
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 continuo
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 perfecto
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 perfecto 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 continuo
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 continuo
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?