may maintain
Regular verb: maintain - maintained- maintained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may maintain
you may maintain
he may maintain
we may maintain
you may maintain
they may maintain 	I may be maintaining
you may be maintaining
he may be maintaining
we may be maintaining
you may be maintaining
they may be maintaining	I may have maintained
you may have maintained
he may have maintained
we may have maintained
you may have maintained
they may have maintained	I may have been maintaining
you may have been maintaining
he may have been maintaining
we may have been maintaining
you may have been maintaining
they may have been maintaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't maintain
you mayn't maintain
he mayn't maintain
we mayn't maintain
you mayn't maintain
they mayn't maintain 	I mayn't be maintaining
you mayn't be maintaining
he mayn't be maintaining
we mayn't be maintaining
you mayn't be maintaining
they mayn't be maintaining	I mayn't have maintained
you mayn't have maintained
he mayn't have maintained
we mayn't have maintained
you mayn't have maintained
they mayn't have maintained	I mayn't have been maintaining
you mayn't have been maintaining
he mayn't have been maintaining
we mayn't have been maintaining
you mayn't have been maintaining
they mayn't have been maintaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I maintain?
may you maintain?
may he maintain?
may we maintain?
may you maintain?
may they maintain? 	may I be maintaining?
may you be maintaining?
may he be maintaining?
may we be maintaining?
may you be maintaining?
may they be maintaining? 	may I have maintained?
may you have maintained?
may he have maintained?
may we have maintained?
may you have maintained?
may they have maintained? 	may I have been maintaining?
may you have been maintaining?
may he have been maintaining?
may we have been maintaining?
may you have been maintaining?
may they have been maintaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I maintain?
mayn't you maintain?
mayn't he maintain?
mayn't we maintain?
mayn't you maintain?
mayn't they maintain? 	mayn't I be maintaining?
mayn't you be maintaining?
mayn't he be maintaining?
mayn't we be maintaining?
mayn't you be maintaining?
mayn't they be maintaining? 	mayn't I have maintained?
mayn't you have maintained?
mayn't he have maintained?
mayn't we have maintained?
mayn't you have maintained?
mayn't they have maintained? 	mayn't I have been maintaining?
mayn't you have been maintaining?
mayn't he have been maintaining?
mayn't we have been maintaining?
mayn't you have been maintaining?
mayn't they have been maintaining?