may serve
Regular verb: serve - served- served

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may serve
you may serve
he may serve
we may serve
you may serve
they may serve 	I may be serving
you may be serving
he may be serving
we may be serving
you may be serving
they may be serving	I may have served
you may have served
he may have served
we may have served
you may have served
they may have served	I may have been serving
you may have been serving
he may have been serving
we may have been serving
you may have been serving
they may have been serving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't serve
you mayn't serve
he mayn't serve
we mayn't serve
you mayn't serve
they mayn't serve 	I mayn't be serving
you mayn't be serving
he mayn't be serving
we mayn't be serving
you mayn't be serving
they mayn't be serving	I mayn't have served
you mayn't have served
he mayn't have served
we mayn't have served
you mayn't have served
they mayn't have served	I mayn't have been serving
you mayn't have been serving
he mayn't have been serving
we mayn't have been serving
you mayn't have been serving
they mayn't have been serving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I serve?
may you serve?
may he serve?
may we serve?
may you serve?
may they serve? 	may I be serving?
may you be serving?
may he be serving?
may we be serving?
may you be serving?
may they be serving? 	may I have served?
may you have served?
may he have served?
may we have served?
may you have served?
may they have served? 	may I have been serving?
may you have been serving?
may he have been serving?
may we have been serving?
may you have been serving?
may they have been serving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I serve?
mayn't you serve?
mayn't he serve?
mayn't we serve?
mayn't you serve?
mayn't they serve? 	mayn't I be serving?
mayn't you be serving?
mayn't he be serving?
mayn't we be serving?
mayn't you be serving?
mayn't they be serving? 	mayn't I have served?
mayn't you have served?
mayn't he have served?
mayn't we have served?
mayn't you have served?
mayn't they have served? 	mayn't I have been serving?
mayn't you have been serving?
mayn't he have been serving?
mayn't we have been serving?
mayn't you have been serving?
mayn't they have been serving?