may use
Regular verb: use - used- used

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may use
you may use
she may use
we may use
you may use
they may use 	I may be using
you may be using
she may be using
we may be using
you may be using
they may be using	I may have used
you may have used
she may have used
we may have used
you may have used
they may have used	I may have been using
you may have been using
she may have been using
we may have been using
you may have been using
they may have been using	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't use
you mayn't use
she mayn't use
we mayn't use
you mayn't use
they mayn't use 	I mayn't be using
you mayn't be using
she mayn't be using
we mayn't be using
you mayn't be using
they mayn't be using	I mayn't have used
you mayn't have used
she mayn't have used
we mayn't have used
you mayn't have used
they mayn't have used	I mayn't have been using
you mayn't have been using
she mayn't have been using
we mayn't have been using
you mayn't have been using
they mayn't have been using	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I use?
may you use?
may she use?
may we use?
may you use?
may they use? 	may I be using?
may you be using?
may she be using?
may we be using?
may you be using?
may they be using? 	may I have used?
may you have used?
may she have used?
may we have used?
may you have used?
may they have used? 	may I have been using?
may you have been using?
may she have been using?
may we have been using?
may you have been using?
may they have been using? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I use?
mayn't you use?
mayn't she use?
mayn't we use?
mayn't you use?
mayn't they use? 	mayn't I be using?
mayn't you be using?
mayn't she be using?
mayn't we be using?
mayn't you be using?
mayn't they be using? 	mayn't I have used?
mayn't you have used?
mayn't she have used?
mayn't we have used?
mayn't you have used?
mayn't they have used? 	mayn't I have been using?
mayn't you have been using?
mayn't she have been using?
mayn't we have been using?
mayn't you have been using?
mayn't they have been using?