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