could whang
Regular verb: whang - whanged- whanged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could whang
you could whang
she could whang
we could whang
you could whang
they could whang 	I could be whanging
you could be whanging
she could be whanging
we could be whanging
you could be whanging
they could be whanging	I could have whanged
you could have whanged
she could have whanged
we could have whanged
you could have whanged
they could have whanged	I could have been whanging
you could have been whanging
she could have been whanging
we could have been whanging
you could have been whanging
they could have been whanging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't whang
you couldn't whang
she couldn't whang
we couldn't whang
you couldn't whang
they couldn't whang 	I couldn't be whanging
you couldn't be whanging
she couldn't be whanging
we couldn't be whanging
you couldn't be whanging
they couldn't be whanging	I couldn't have whanged
you couldn't have whanged
she couldn't have whanged
we couldn't have whanged
you couldn't have whanged
they couldn't have whanged	I couldn't have been whanging
you couldn't have been whanging
she couldn't have been whanging
we couldn't have been whanging
you couldn't have been whanging
they couldn't have been whanging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I whang?
could you whang?
could she whang?
could we whang?
could you whang?
could they whang? 	could I be whanging?
could you be whanging?
could she be whanging?
could we be whanging?
could you be whanging?
could they be whanging? 	could I have whanged?
could you have whanged?
could she have whanged?
could we have whanged?
could you have whanged?
could they have whanged? 	could I have been whanging?
could you have been whanging?
could she have been whanging?
could we have been whanging?
could you have been whanging?
could they have been whanging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I whang?
couldn't you whang?
couldn't she whang?
couldn't we whang?
couldn't you whang?
couldn't they whang? 	couldn't I be whanging?
couldn't you be whanging?
couldn't she be whanging?
couldn't we be whanging?
couldn't you be whanging?
couldn't they be whanging? 	couldn't I have whanged?
couldn't you have whanged?
couldn't she have whanged?
couldn't we have whanged?
couldn't you have whanged?
couldn't they have whanged? 	couldn't I have been whanging?
couldn't you have been whanging?
couldn't she have been whanging?
couldn't we have been whanging?
couldn't you have been whanging?
couldn't they have been whanging?