could malfunction
Verbe régulier : malfunction - malfunctioned- malfunctioned
Traduction française : mal fonctionner - tomber en panne 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could malfunction
you could malfunction
she could malfunction
we could malfunction
you could malfunction
they could malfunction 	I could be malfunctioning
you could be malfunctioning
she could be malfunctioning
we could be malfunctioning
you could be malfunctioning
they could be malfunctioning	I could have malfunctioned
you could have malfunctioned
she could have malfunctioned
we could have malfunctioned
you could have malfunctioned
they could have malfunctioned	I could have been malfunctioning
you could have been malfunctioning
she could have been malfunctioning
we could have been malfunctioning
you could have been malfunctioning
they could have been malfunctioning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't malfunction
you couldn't malfunction
she couldn't malfunction
we couldn't malfunction
you couldn't malfunction
they couldn't malfunction 	I couldn't be malfunctioning
you couldn't be malfunctioning
she couldn't be malfunctioning
we couldn't be malfunctioning
you couldn't be malfunctioning
they couldn't be malfunctioning	I couldn't have malfunctioned
you couldn't have malfunctioned
she couldn't have malfunctioned
we couldn't have malfunctioned
you couldn't have malfunctioned
they couldn't have malfunctioned	I couldn't have been malfunctioning
you couldn't have been malfunctioning
she couldn't have been malfunctioning
we couldn't have been malfunctioning
you couldn't have been malfunctioning
they couldn't have been malfunctioning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I malfunction?
could you malfunction?
could she malfunction?
could we malfunction?
could you malfunction?
could they malfunction? 	could I be malfunctioning?
could you be malfunctioning?
could she be malfunctioning?
could we be malfunctioning?
could you be malfunctioning?
could they be malfunctioning? 	could I have malfunctioned?
could you have malfunctioned?
could she have malfunctioned?
could we have malfunctioned?
could you have malfunctioned?
could they have malfunctioned? 	could I have been malfunctioning?
could you have been malfunctioning?
could she have been malfunctioning?
could we have been malfunctioning?
could you have been malfunctioning?
could they have been malfunctioning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I malfunction?
couldn't you malfunction?
couldn't she malfunction?
couldn't we malfunction?
couldn't you malfunction?
couldn't they malfunction? 	couldn't I be malfunctioning?
couldn't you be malfunctioning?
couldn't she be malfunctioning?
couldn't we be malfunctioning?
couldn't you be malfunctioning?
couldn't they be malfunctioning? 	couldn't I have malfunctioned?
couldn't you have malfunctioned?
couldn't she have malfunctioned?
couldn't we have malfunctioned?
couldn't you have malfunctioned?
couldn't they have malfunctioned? 	couldn't I have been malfunctioning?
couldn't you have been malfunctioning?
couldn't she have been malfunctioning?
couldn't we have been malfunctioning?
couldn't you have been malfunctioning?
couldn't they have been malfunctioning?