don't I prebuy? don't you prebuy? doesn't she prebuy? don't we prebuy? don't you prebuy? don't they prebuy?
Present continuous
am I not prebuying? aren't you prebuying? isn't she prebuying? aren't we prebuying? aren't you prebuying? aren't they prebuying?
Preterite
didn't I prebuy? didn't you prebuy? didn't she prebuy? didn't we prebuy? didn't you prebuy? didn't they prebuy?
Preterite continuous
wasn't I prebuying? weren't you prebuying? wasn't she prebuying? weren't we prebuying? weren't you prebuying? weren't they prebuying?
Present perfect
haven't I prebought? haven't you prebought? hasn't she prebought? haven't we prebought? haven't you prebought? haven't they prebought?
Present perfect continuous
haven't I been prebuying? haven't you been prebuying? hasn't she been prebuying? haven't we been prebuying? haven't you been prebuying? haven't they been prebuying?
Pluperfect
hadn't I prebought? hadn't you prebought? hadn't she prebought? hadn't we prebought? hadn't you prebought? hadn't they prebought?
Pluperfect continuous
hadn't I been prebuying? hadn't you been prebuying? hadn't she been prebuying? hadn't we been prebuying? hadn't you been prebuying? hadn't they been prebuying?
Future
won't I prebuy? won't you prebuy? won't she prebuy? won't we prebuy? won't you prebuy? won't they prebuy?
Future continuous
won't I be prebuying? won't you be prebuying? won't she be prebuying? won't we be prebuying? won't you be prebuying? won't they be prebuying?
Future perfect
won't I have prebought? won't you have prebought? won't she have prebought? won't we have prebought? won't you have prebought? won't they have prebought?
Future perfect continuous
won't I have been prebuying? won't you have been prebuying? won't she have been prebuying? won't we have been prebuying? won't you have been prebuying? won't they have been prebuying?
Conditional
Present
wouldn't I prebuy? wouldn't you prebuy? wouldn't she prebuy? wouldn't we prebuy? wouldn't you prebuy? wouldn't they prebuy?
Present continuous
wouldn't I be prebuying? wouldn't you be prebuying? wouldn't she be prebuying? wouldn't we be prebuying? wouldn't you be prebuying? wouldn't they be prebuying?
Past
wouldn't I have prebought? wouldn't you have prebought? wouldn't she have prebought? wouldn't we have prebought? wouldn't you have prebought? wouldn't they have prebought?
Past continuous
wouldn't I have been prebuying? wouldn't you have been prebuying? wouldn't she have been prebuying? wouldn't we have been prebuying? wouldn't you have been prebuying? wouldn't they have been prebuying?