can malfunction
Regular verb: malfunction - malfunctioned- malfunctioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can malfunction
you can malfunction
she can malfunction
we can malfunction
you can malfunction
they can malfunction 	I can be malfunctioning
you can be malfunctioning
she can be malfunctioning
we can be malfunctioning
you can be malfunctioning
they can be malfunctioning	I can have malfunctioned
you can have malfunctioned
she can have malfunctioned
we can have malfunctioned
you can have malfunctioned
they can have malfunctioned	I can have been malfunctioning
you can have been malfunctioning
she can have been malfunctioning
we can have been malfunctioning
you can have been malfunctioning
they can have been malfunctioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't malfunction
you can't malfunction
she can't malfunction
we can't malfunction
you can't malfunction
they can't malfunction 	I can't be malfunctioning
you can't be malfunctioning
she can't be malfunctioning
we can't be malfunctioning
you can't be malfunctioning
they can't be malfunctioning	I can't have malfunctioned
you can't have malfunctioned
she can't have malfunctioned
we can't have malfunctioned
you can't have malfunctioned
they can't have malfunctioned	I can't have been malfunctioning
you can't have been malfunctioning
she can't have been malfunctioning
we can't have been malfunctioning
you can't have been malfunctioning
they can't have been malfunctioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I malfunction?
can you malfunction?
can she malfunction?
can we malfunction?
can you malfunction?
can they malfunction? 	can I be malfunctioning?
can you be malfunctioning?
can she be malfunctioning?
can we be malfunctioning?
can you be malfunctioning?
can they be malfunctioning? 	can I have malfunctioned?
can you have malfunctioned?
can she have malfunctioned?
can we have malfunctioned?
can you have malfunctioned?
can they have malfunctioned? 	can I have been malfunctioning?
can you have been malfunctioning?
can she have been malfunctioning?
can we have been malfunctioning?
can you have been malfunctioning?
can they have been malfunctioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I malfunction?
can't you malfunction?
can't she malfunction?
can't we malfunction?
can't you malfunction?
can't they malfunction? 	can't I be malfunctioning?
can't you be malfunctioning?
can't she be malfunctioning?
can't we be malfunctioning?
can't you be malfunctioning?
can't they be malfunctioning? 	can't I have malfunctioned?
can't you have malfunctioned?
can't she have malfunctioned?
can't we have malfunctioned?
can't you have malfunctioned?
can't they have malfunctioned? 	can't I have been malfunctioning?
can't you have been malfunctioning?
can't she have been malfunctioning?
can't we have been malfunctioning?
can't you have been malfunctioning?
can't they have been malfunctioning?