may vacation
Regular verb: vacation - vacationed- vacationed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may vacation
you may vacation
he may vacation
we may vacation
you may vacation
they may vacation 	I may be vacationing
you may be vacationing
he may be vacationing
we may be vacationing
you may be vacationing
they may be vacationing	I may have vacationed
you may have vacationed
he may have vacationed
we may have vacationed
you may have vacationed
they may have vacationed	I may have been vacationing
you may have been vacationing
he may have been vacationing
we may have been vacationing
you may have been vacationing
they may have been vacationing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't vacation
you mayn't vacation
he mayn't vacation
we mayn't vacation
you mayn't vacation
they mayn't vacation 	I mayn't be vacationing
you mayn't be vacationing
he mayn't be vacationing
we mayn't be vacationing
you mayn't be vacationing
they mayn't be vacationing	I mayn't have vacationed
you mayn't have vacationed
he mayn't have vacationed
we mayn't have vacationed
you mayn't have vacationed
they mayn't have vacationed	I mayn't have been vacationing
you mayn't have been vacationing
he mayn't have been vacationing
we mayn't have been vacationing
you mayn't have been vacationing
they mayn't have been vacationing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I vacation?
may you vacation?
may he vacation?
may we vacation?
may you vacation?
may they vacation? 	may I be vacationing?
may you be vacationing?
may he be vacationing?
may we be vacationing?
may you be vacationing?
may they be vacationing? 	may I have vacationed?
may you have vacationed?
may he have vacationed?
may we have vacationed?
may you have vacationed?
may they have vacationed? 	may I have been vacationing?
may you have been vacationing?
may he have been vacationing?
may we have been vacationing?
may you have been vacationing?
may they have been vacationing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I vacation?
mayn't you vacation?
mayn't he vacation?
mayn't we vacation?
mayn't you vacation?
mayn't they vacation? 	mayn't I be vacationing?
mayn't you be vacationing?
mayn't he be vacationing?
mayn't we be vacationing?
mayn't you be vacationing?
mayn't they be vacationing? 	mayn't I have vacationed?
mayn't you have vacationed?
mayn't he have vacationed?
mayn't we have vacationed?
mayn't you have vacationed?
mayn't they have vacationed? 	mayn't I have been vacationing?
mayn't you have been vacationing?
mayn't he have been vacationing?
mayn't we have been vacationing?
mayn't you have been vacationing?
mayn't they have been vacationing?