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