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