Present participle; Past participle - malfunctioning - malfunctioned Present - malfunction - malfunction - malfunctions - malfunction - malfunction - malfunction Past - malfunctioned - malfunctioned - malfunctioned - malfunctioned - malfunctioned - malfunctioned Future - will malfunction - will malfunction - will malfunction - will malfunction - will malfunction - will malfunction Present conditional - would malfunction - would malfunction - would malfunction - would malfunction - would malfunction - would malfunction Present Perfect - have malfunctioned - have malfunctioned - has malfunctioned - have malfunctioned - have malfunctioned - have malfunctioned Past Perfect - had malfunctioned - had malfunctioned - had malfunctioned - had malfunctioned - had malfunctioned - had malfunctioned Future Perfect - will have malfunctioned - will have malfunctioned - will have malfunctioned - will have malfunctioned - will have malfunctioned - will have malfunctioned Past conditional - would have malfunctioned - would have malfunctioned - would have malfunctioned - would have malfunctioned - would have malfunctioned - would have malfunctioned Imperative - - - malfunction - - - - - - - -