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