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