must malfunction
Verbo regolare: malfunction - malfunctioned- malfunctioned

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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	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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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	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	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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? 	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?