may lock
Regular verb: lock - locked- locked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may lock
you may lock
she may lock
we may lock
you may lock
they may lock 	I may be locking
you may be locking
she may be locking
we may be locking
you may be locking
they may be locking	I may have locked
you may have locked
she may have locked
we may have locked
you may have locked
they may have locked	I may have been locking
you may have been locking
she may have been locking
we may have been locking
you may have been locking
they may have been locking	

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

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