may vanish
Regular verb: vanish - vanished- vanished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may vanish
you may vanish
she may vanish
we may vanish
you may vanish
they may vanish 	I may be vanishing
you may be vanishing
she may be vanishing
we may be vanishing
you may be vanishing
they may be vanishing	I may have vanished
you may have vanished
she may have vanished
we may have vanished
you may have vanished
they may have vanished	I may have been vanishing
you may have been vanishing
she may have been vanishing
we may have been vanishing
you may have been vanishing
they may have been vanishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't vanish
you mayn't vanish
she mayn't vanish
we mayn't vanish
you mayn't vanish
they mayn't vanish 	I mayn't be vanishing
you mayn't be vanishing
she mayn't be vanishing
we mayn't be vanishing
you mayn't be vanishing
they mayn't be vanishing	I mayn't have vanished
you mayn't have vanished
she mayn't have vanished
we mayn't have vanished
you mayn't have vanished
they mayn't have vanished	I mayn't have been vanishing
you mayn't have been vanishing
she mayn't have been vanishing
we mayn't have been vanishing
you mayn't have been vanishing
they mayn't have been vanishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I vanish?
may you vanish?
may she vanish?
may we vanish?
may you vanish?
may they vanish? 	may I be vanishing?
may you be vanishing?
may she be vanishing?
may we be vanishing?
may you be vanishing?
may they be vanishing? 	may I have vanished?
may you have vanished?
may she have vanished?
may we have vanished?
may you have vanished?
may they have vanished? 	may I have been vanishing?
may you have been vanishing?
may she have been vanishing?
may we have been vanishing?
may you have been vanishing?
may they have been vanishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I vanish?
mayn't you vanish?
mayn't she vanish?
mayn't we vanish?
mayn't you vanish?
mayn't they vanish? 	mayn't I be vanishing?
mayn't you be vanishing?
mayn't she be vanishing?
mayn't we be vanishing?
mayn't you be vanishing?
mayn't they be vanishing? 	mayn't I have vanished?
mayn't you have vanished?
mayn't she have vanished?
mayn't we have vanished?
mayn't you have vanished?
mayn't they have vanished? 	mayn't I have been vanishing?
mayn't you have been vanishing?
mayn't she have been vanishing?
mayn't we have been vanishing?
mayn't you have been vanishing?
mayn't they have been vanishing?