may maintain
Regular verb: maintain - maintained- maintained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may maintain
you may maintain
she may maintain
we may maintain
you may maintain
they may maintain 	I may be maintaining
you may be maintaining
she may be maintaining
we may be maintaining
you may be maintaining
they may be maintaining	I may have maintained
you may have maintained
she 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
she 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
she 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
she 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
she 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
she 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 she maintain?
may we maintain?
may you maintain?
may they maintain? 	may I be maintaining?
may you be maintaining?
may she be maintaining?
may we be maintaining?
may you be maintaining?
may they be maintaining? 	may I have maintained?
may you have maintained?
may she 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 she 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 she 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 she 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 she 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 she have been maintaining?
mayn't we have been maintaining?
mayn't you have been maintaining?
mayn't they have been maintaining?