I may lesson you may lesson he may lesson we may lesson you may lesson they may lesson
V-ing form
I may be lessoning you may be lessoning he may be lessoning we may be lessoning you may be lessoning they may be lessoning
Perfect
I may have lessoned you may have lessoned he may have lessoned we may have lessoned you may have lessoned they may have lessoned
V-ing perfect
I may have been lessoning you may have been lessoning he may have been lessoning we may have been lessoning you may have been lessoning they may have been lessoning
Negation
Simple form
I mayn't lesson you mayn't lesson he mayn't lesson we mayn't lesson you mayn't lesson they mayn't lesson
V-ing form
I mayn't be lessoning you mayn't be lessoning he mayn't be lessoning we mayn't be lessoning you mayn't be lessoning they mayn't be lessoning
Perfect
I mayn't have lessoned you mayn't have lessoned he mayn't have lessoned we mayn't have lessoned you mayn't have lessoned they mayn't have lessoned
V-ing perfect
I mayn't have been lessoning you mayn't have been lessoning he mayn't have been lessoning we mayn't have been lessoning you mayn't have been lessoning they mayn't have been lessoning
Interrogative form
Simple form
may I lesson? may you lesson? may he lesson? may we lesson? may you lesson? may they lesson?
V-ing form
may I be lessoning? may you be lessoning? may he be lessoning? may we be lessoning? may you be lessoning? may they be lessoning?
Perfect
may I have lessoned? may you have lessoned? may he have lessoned? may we have lessoned? may you have lessoned? may they have lessoned?
V-ing perfect
may I have been lessoning? may you have been lessoning? may he have been lessoning? may we have been lessoning? may you have been lessoning? may they have been lessoning?
Interro-negative form
Simple form
mayn't I lesson? mayn't you lesson? mayn't he lesson? mayn't we lesson? mayn't you lesson? mayn't they lesson?
V-ing form
mayn't I be lessoning? mayn't you be lessoning? mayn't he be lessoning? mayn't we be lessoning? mayn't you be lessoning? mayn't they be lessoning?
Perfect
mayn't I have lessoned? mayn't you have lessoned? mayn't he have lessoned? mayn't we have lessoned? mayn't you have lessoned? mayn't they have lessoned?
V-ing perfect
mayn't I have been lessoning? mayn't you have been lessoning? mayn't he have been lessoning? mayn't we have been lessoning? mayn't you have been lessoning? mayn't they have been lessoning?