could yammer yammer
Verbo regular: yammer yammer - yammer yammered- yammer yammered

, este verbo pode não existir, a conjugação é dada como exemplo.

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could yammer yammer
you could yammer yammer
he could yammer yammer
we could yammer yammer
you could yammer yammer
they could yammer yammer 	I could be yammer yammering
you could be yammer yammering
he could be yammer yammering
we could be yammer yammering
you could be yammer yammering
they could be yammer yammering	I could have yammer yammered
you could have yammer yammered
he could have yammer yammered
we could have yammer yammered
you could have yammer yammered
they could have yammer yammered	I could have been yammer yammering
you could have been yammer yammering
he could have been yammer yammering
we could have been yammer yammering
you could have been yammer yammering
they could have been yammer yammering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not yammer yammer
you could not yammer yammer
he could not yammer yammer
we could not yammer yammer
you could not yammer yammer
they could not yammer yammer 	I could not be yammer yammering
you could not be yammer yammering
he could not be yammer yammering
we could not be yammer yammering
you could not be yammer yammering
they could not be yammer yammering	I could not have yammer yammered
you could not have yammer yammered
he could not have yammer yammered
we could not have yammer yammered
you could not have yammer yammered
they could not have yammer yammered	I could not have been yammer yammering
you could not have been yammer yammering
he could not have been yammer yammering
we could not have been yammer yammering
you could not have been yammer yammering
they could not have been yammer yammering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I yammer yammer?
could you yammer yammer?
could he yammer yammer?
could we yammer yammer?
could you yammer yammer?
could they yammer yammer? 	could I be yammer yammering?
could you be yammer yammering?
could he be yammer yammering?
could we be yammer yammering?
could you be yammer yammering?
could they be yammer yammering? 	could I have yammer yammered?
could you have yammer yammered?
could he have yammer yammered?
could we have yammer yammered?
could you have yammer yammered?
could they have yammer yammered? 	could I have been yammer yammering?
could you have been yammer yammering?
could he have been yammer yammering?
could we have been yammer yammering?
could you have been yammer yammering?
could they have been yammer yammering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not yammer yammer?
could you not yammer yammer?
could he not yammer yammer?
could we not yammer yammer?
could you not yammer yammer?
could they not yammer yammer? 	could I not be yammer yammering?
could you not be yammer yammering?
could he not be yammer yammering?
could we not be yammer yammering?
could you not be yammer yammering?
could they not be yammer yammering? 	could I not have yammer yammered?
could you not have yammer yammered?
could he not have yammer yammered?
could we not have yammer yammered?
could you not have yammer yammered?
could they not have yammer yammered? 	could I not have been yammer yammering?
could you not have been yammer yammering?
could he not have been yammer yammering?
could we not have been yammer yammering?
could you not have been yammer yammering?
could they not have been yammer yammering?