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