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