could blether
Regular verb: blether - blethered- blethered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could blether
you could blether
he could blether
we could blether
you could blether
they could blether 	I could be blethering
you could be blethering
he could be blethering
we could be blethering
you could be blethering
they could be blethering	I could have blethered
you could have blethered
he could have blethered
we could have blethered
you could have blethered
they could have blethered	I could have been blethering
you could have been blethering
he could have been blethering
we could have been blethering
you could have been blethering
they could have been blethering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't blether
you couldn't blether
he couldn't blether
we couldn't blether
you couldn't blether
they couldn't blether 	I couldn't be blethering
you couldn't be blethering
he couldn't be blethering
we couldn't be blethering
you couldn't be blethering
they couldn't be blethering	I couldn't have blethered
you couldn't have blethered
he couldn't have blethered
we couldn't have blethered
you couldn't have blethered
they couldn't have blethered	I couldn't have been blethering
you couldn't have been blethering
he couldn't have been blethering
we couldn't have been blethering
you couldn't have been blethering
they couldn't have been blethering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I blether?
could you blether?
could he blether?
could we blether?
could you blether?
could they blether? 	could I be blethering?
could you be blethering?
could he be blethering?
could we be blethering?
could you be blethering?
could they be blethering? 	could I have blethered?
could you have blethered?
could he have blethered?
could we have blethered?
could you have blethered?
could they have blethered? 	could I have been blethering?
could you have been blethering?
could he have been blethering?
could we have been blethering?
could you have been blethering?
could they have been blethering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I blether?
couldn't you blether?
couldn't he blether?
couldn't we blether?
couldn't you blether?
couldn't they blether? 	couldn't I be blethering?
couldn't you be blethering?
couldn't he be blethering?
couldn't we be blethering?
couldn't you be blethering?
couldn't they be blethering? 	couldn't I have blethered?
couldn't you have blethered?
couldn't he have blethered?
couldn't we have blethered?
couldn't you have blethered?
couldn't they have blethered? 	couldn't I have been blethering?
couldn't you have been blethering?
couldn't he have been blethering?
couldn't we have been blethering?
couldn't you have been blethering?
couldn't they have been blethering?