can yammer yammer
Regular verb: yammer yammer - yammer yammered- yammer yammered

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can yammer yammer
you can yammer yammer
she can yammer yammer
we can yammer yammer
you can yammer yammer
they can yammer yammer 	I can be yammer yammering
you can be yammer yammering
she can be yammer yammering
we can be yammer yammering
you can be yammer yammering
they can be yammer yammering	I can have yammer yammered
you can have yammer yammered
she can have yammer yammered
we can have yammer yammered
you can have yammer yammered
they can have yammer yammered	I can have been yammer yammering
you can have been yammer yammering
she can have been yammer yammering
we can have been yammer yammering
you can have been yammer yammering
they can have been yammer yammering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot yammer yammer
you cannot yammer yammer
she cannot yammer yammer
we cannot yammer yammer
you cannot yammer yammer
they cannot yammer yammer 	I cannot be yammer yammering
you cannot be yammer yammering
she cannot be yammer yammering
we cannot be yammer yammering
you cannot be yammer yammering
they cannot be yammer yammering	I cannot have yammer yammered
you cannot have yammer yammered
she cannot have yammer yammered
we cannot have yammer yammered
you cannot have yammer yammered
they cannot have yammer yammered	I cannot have been yammer yammering
you cannot have been yammer yammering
she cannot have been yammer yammering
we cannot have been yammer yammering
you cannot have been yammer yammering
they cannot have been yammer yammering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I yammer yammer?
can you yammer yammer?
can she yammer yammer?
can we yammer yammer?
can you yammer yammer?
can they yammer yammer? 	can I be yammer yammering?
can you be yammer yammering?
can she be yammer yammering?
can we be yammer yammering?
can you be yammer yammering?
can they be yammer yammering? 	can I have yammer yammered?
can you have yammer yammered?
can she have yammer yammered?
can we have yammer yammered?
can you have yammer yammered?
can they have yammer yammered? 	can I have been yammer yammering?
can you have been yammer yammering?
can she have been yammer yammering?
can we have been yammer yammering?
can you have been yammer yammering?
can they have been yammer yammering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not yammer yammer?
can you not yammer yammer?
can she not yammer yammer?
can we not yammer yammer?
can you not yammer yammer?
can they not yammer yammer? 	can I not be yammer yammering?
can you not be yammer yammering?
can she not be yammer yammering?
can we not be yammer yammering?
can you not be yammer yammering?
can they not be yammer yammering? 	can I not have yammer yammered?
can you not have yammer yammered?
can she not have yammer yammered?
can we not have yammer yammered?
can you not have yammer yammered?
can they not have yammer yammered? 	can I not have been yammer yammering?
can you not have been yammer yammering?
can she not have been yammer yammering?
can we not have been yammer yammering?
can you not have been yammer yammering?
can they not have been yammer yammering?