English verb conjugation
MUST MALFUNCTION

Regular verb: malfunction - malfunctioned - malfunctioned

Affirmation

Simple form	V-ing form
I must malfunction you must malfunction he must malfunction we must malfunction you must malfunction they must malfunction	I must be malfunctioning you must be malfunctioning he must be malfunctioning we must be malfunctioning you must be malfunctioning they must be malfunctioning
Perfect	V-ing perfect
I must have malfunctioned you must have malfunctioned he must have malfunctioned we must have malfunctioned you must have malfunctioned they must have malfunctioned	I must have been malfunctioning you must have been malfunctioning he must have been malfunctioning we must have been malfunctioning you must have been malfunctioning they must have been malfunctioning

Negation

Simple form	V-ing form
I mustn't malfunction you mustn't malfunction he mustn't malfunction we mustn't malfunction you mustn't malfunction they mustn't malfunction	I mustn't be malfunctioning you mustn't be malfunctioning he mustn't be malfunctioning we mustn't be malfunctioning you mustn't be malfunctioning they mustn't be malfunctioning
Perfect	V-ing perfect
I mustn't have malfunctioned you mustn't have malfunctioned he mustn't have malfunctioned we mustn't have malfunctioned you mustn't have malfunctioned they mustn't have malfunctioned	I mustn't have been malfunctioning you mustn't have been malfunctioning he mustn't have been malfunctioning we mustn't have been malfunctioning you mustn't have been malfunctioning they mustn't have been malfunctioning

Interrogative form

Simple form	V-ing form
must I malfunction? must you malfunction? must he malfunction? must we malfunction? must you malfunction? must they malfunction?	must I be malfunctioning? must you be malfunctioning? must he be malfunctioning? must we be malfunctioning? must you be malfunctioning? must they be malfunctioning?
Perfect	V-ing perfect
must I have malfunctioned? must you have malfunctioned? must he have malfunctioned? must we have malfunctioned? must you have malfunctioned? must they have malfunctioned?	must I have been malfunctioning? must you have been malfunctioning? must he have been malfunctioning? must we have been malfunctioning? must you have been malfunctioning? must they have been malfunctioning?

Interro-negative form

Simple form	V-ing form
mustn't I malfunction? mustn't you malfunction? mustn't he malfunction? mustn't we malfunction? mustn't you malfunction? mustn't they malfunction?	mustn't I be malfunctioning? mustn't you be malfunctioning? mustn't he be malfunctioning? mustn't we be malfunctioning? mustn't you be malfunctioning? mustn't they be malfunctioning?
Perfect	V-ing perfect
mustn't I have malfunctioned? mustn't you have malfunctioned? mustn't he have malfunctioned? mustn't we have malfunctioned? mustn't you have malfunctioned? mustn't they have malfunctioned?	mustn't I have been malfunctioning? mustn't you have been malfunctioning? mustn't he have been malfunctioning? mustn't we have been malfunctioning? mustn't you have been malfunctioning? mustn't they have been malfunctioning?