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