don't I refine? don't you refine? doesn't he refine? don't we refine? don't you refine? don't they refine?
Present continuous
am I not refining? aren't you refining? isn't he refining? aren't we refining? aren't you refining? aren't they refining?
Preterite
didn't I refine? didn't you refine? didn't he refine? didn't we refine? didn't you refine? didn't they refine?
Preterite continuous
wasn't I refining? weren't you refining? wasn't he refining? weren't we refining? weren't you refining? weren't they refining?
Present perfect
haven't I refined? haven't you refined? hasn't he refined? haven't we refined? haven't you refined? haven't they refined?
Present perfect continuous
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?
Pluperfect
hadn't I refined? hadn't you refined? hadn't he refined? hadn't we refined? hadn't you refined? hadn't they refined?
Pluperfect continuous
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?
Future
won't I refine? won't you refine? won't he refine? won't we refine? won't you refine? won't they refine?
Future continuous
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?
Future perfect
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?
Future perfect continuous
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?
Conditional
Present
wouldn't I refine? wouldn't you refine? wouldn't he refine? wouldn't we refine? wouldn't you refine? wouldn't they refine?
Present continuous
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?
Past
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?
Past continuous
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?