don't I lesson? don't you lesson? doesn't she 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 she lessoning? aren't we lessoning? aren't you lessoning? aren't they lessoning?
Preterite
didn't I lesson? didn't you lesson? didn't she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she have been lessoning? wouldn't we have been lessoning? wouldn't you have been lessoning? wouldn't they have been lessoning?