may malfunction
Regular verb: malfunction - malfunctioned- malfunctioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may malfunction
you may malfunction
she may malfunction
we may malfunction
you may malfunction
they may malfunction 	I may be malfunctioning
you may be malfunctioning
she may be malfunctioning
we may be malfunctioning
you may be malfunctioning
they may be malfunctioning	I may have malfunctioned
you may have malfunctioned
she may have malfunctioned
we may have malfunctioned
you may have malfunctioned
they may have malfunctioned	I may have been malfunctioning
you may have been malfunctioning
she may have been malfunctioning
we may have been malfunctioning
you may have been malfunctioning
they may have been malfunctioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't malfunction
you mayn't malfunction
she mayn't malfunction
we mayn't malfunction
you mayn't malfunction
they mayn't malfunction 	I mayn't be malfunctioning
you mayn't be malfunctioning
she mayn't be malfunctioning
we mayn't be malfunctioning
you mayn't be malfunctioning
they mayn't be malfunctioning	I mayn't have malfunctioned
you mayn't have malfunctioned
she mayn't have malfunctioned
we mayn't have malfunctioned
you mayn't have malfunctioned
they mayn't have malfunctioned	I mayn't have been malfunctioning
you mayn't have been malfunctioning
she mayn't have been malfunctioning
we mayn't have been malfunctioning
you mayn't have been malfunctioning
they mayn't have been malfunctioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I malfunction?
may you malfunction?
may she malfunction?
may we malfunction?
may you malfunction?
may they malfunction? 	may I be malfunctioning?
may you be malfunctioning?
may she be malfunctioning?
may we be malfunctioning?
may you be malfunctioning?
may they be malfunctioning? 	may I have malfunctioned?
may you have malfunctioned?
may she have malfunctioned?
may we have malfunctioned?
may you have malfunctioned?
may they have malfunctioned? 	may I have been malfunctioning?
may you have been malfunctioning?
may she have been malfunctioning?
may we have been malfunctioning?
may you have been malfunctioning?
may they have been malfunctioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I malfunction?
mayn't you malfunction?
mayn't she malfunction?
mayn't we malfunction?
mayn't you malfunction?
mayn't they malfunction? 	mayn't I be malfunctioning?
mayn't you be malfunctioning?
mayn't she be malfunctioning?
mayn't we be malfunctioning?
mayn't you be malfunctioning?
mayn't they be malfunctioning? 	mayn't I have malfunctioned?
mayn't you have malfunctioned?
mayn't she have malfunctioned?
mayn't we have malfunctioned?
mayn't you have malfunctioned?
mayn't they have malfunctioned? 	mayn't I have been malfunctioning?
mayn't you have been malfunctioning?
mayn't she have been malfunctioning?
mayn't we have been malfunctioning?
mayn't you have been malfunctioning?
mayn't they have been malfunctioning?