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