could bung
Regular verb: bung - bunged- bunged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bung
you could bung
she could bung
we could bung
you could bung
they could bung 	I could be bunging
you could be bunging
she could be bunging
we could be bunging
you could be bunging
they could be bunging	I could have bunged
you could have bunged
she could have bunged
we could have bunged
you could have bunged
they could have bunged	I could have been bunging
you could have been bunging
she could have been bunging
we could have been bunging
you could have been bunging
they could have been bunging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not bung
you could not bung
she could not bung
we could not bung
you could not bung
they could not bung 	I could not be bunging
you could not be bunging
she could not be bunging
we could not be bunging
you could not be bunging
they could not be bunging	I could not have bunged
you could not have bunged
she could not have bunged
we could not have bunged
you could not have bunged
they could not have bunged	I could not have been bunging
you could not have been bunging
she could not have been bunging
we could not have been bunging
you could not have been bunging
they could not have been bunging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bung?
could you bung?
could she bung?
could we bung?
could you bung?
could they bung? 	could I be bunging?
could you be bunging?
could she be bunging?
could we be bunging?
could you be bunging?
could they be bunging? 	could I have bunged?
could you have bunged?
could she have bunged?
could we have bunged?
could you have bunged?
could they have bunged? 	could I have been bunging?
could you have been bunging?
could she have been bunging?
could we have been bunging?
could you have been bunging?
could they have been bunging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not bung?
could you not bung?
could she not bung?
could we not bung?
could you not bung?
could they not bung? 	could I not be bunging?
could you not be bunging?
could she not be bunging?
could we not be bunging?
could you not be bunging?
could they not be bunging? 	could I not have bunged?
could you not have bunged?
could she not have bunged?
could we not have bunged?
could you not have bunged?
could they not have bunged? 	could I not have been bunging?
could you not have been bunging?
could she not have been bunging?
could we not have been bunging?
could you not have been bunging?
could they not have been bunging?