English verb conjugation
MUST MALFUNCTION

Regular verb: malfunction - malfunctioned - malfunctioned

Affirmation

Simple form	V-ing form
I must malfunction you must malfunction she must malfunction we must malfunction you must malfunction they must malfunction	I must be malfunctioning you must be malfunctioning she 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 she 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 she 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 must not malfunction you must not malfunction she must not malfunction we must not malfunction you must not malfunction they must not malfunction	I must not be malfunctioning you must not be malfunctioning she must not be malfunctioning we must not be malfunctioning you must not be malfunctioning they must not be malfunctioning
Perfect	V-ing perfect
I must not have malfunctioned you must not have malfunctioned she must not have malfunctioned we must not have malfunctioned you must not have malfunctioned they must not have malfunctioned	I must not have been malfunctioning you must not have been malfunctioning she must not have been malfunctioning we must not have been malfunctioning you must not have been malfunctioning they must not have been malfunctioning

Interrogative form

Simple form	V-ing form
must I malfunction? must you malfunction? must she malfunction? must we malfunction? must you malfunction? must they malfunction?	must I be malfunctioning? must you be malfunctioning? must she 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 she 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 she 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
must I not malfunction? must you not malfunction? must she not malfunction? must we not malfunction? must you not malfunction? must they not malfunction?	must I not be malfunctioning? must you not be malfunctioning? must she not be malfunctioning? must we not be malfunctioning? must you not be malfunctioning? must they not be malfunctioning?
Perfect	V-ing perfect
must I not have malfunctioned? must you not have malfunctioned? must she not have malfunctioned? must we not have malfunctioned? must you not have malfunctioned? must they not have malfunctioned?	must I not have been malfunctioning? must you not have been malfunctioning? must she not have been malfunctioning? must we not have been malfunctioning? must you not have been malfunctioning? must they not have been malfunctioning?