could bicker
Verbo regular: bicker - bickered- bickered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could bicker
you could bicker
she could bicker
we could bicker
you could bicker
they could bicker 	I could be bickering
you could be bickering
she could be bickering
we could be bickering
you could be bickering
they could be bickering	I could have bickered
you could have bickered
she could have bickered
we could have bickered
you could have bickered
they could have bickered	I could have been bickering
you could have been bickering
she could have been bickering
we could have been bickering
you could have been bickering
they could have been bickering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not bicker
you could not bicker
she could not bicker
we could not bicker
you could not bicker
they could not bicker 	I could not be bickering
you could not be bickering
she could not be bickering
we could not be bickering
you could not be bickering
they could not be bickering	I could not have bickered
you could not have bickered
she could not have bickered
we could not have bickered
you could not have bickered
they could not have bickered	I could not have been bickering
you could not have been bickering
she could not have been bickering
we could not have been bickering
you could not have been bickering
they could not have been bickering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I bicker?
could you bicker?
could she bicker?
could we bicker?
could you bicker?
could they bicker? 	could I be bickering?
could you be bickering?
could she be bickering?
could we be bickering?
could you be bickering?
could they be bickering? 	could I have bickered?
could you have bickered?
could she have bickered?
could we have bickered?
could you have bickered?
could they have bickered? 	could I have been bickering?
could you have been bickering?
could she have been bickering?
could we have been bickering?
could you have been bickering?
could they have been bickering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not bicker?
could you not bicker?
could she not bicker?
could we not bicker?
could you not bicker?
could they not bicker? 	could I not be bickering?
could you not be bickering?
could she not be bickering?
could we not be bickering?
could you not be bickering?
could they not be bickering? 	could I not have bickered?
could you not have bickered?
could she not have bickered?
could we not have bickered?
could you not have bickered?
could they not have bickered? 	could I not have been bickering?
could you not have been bickering?
could she not have been bickering?
could we not have been bickering?
could you not have been bickering?
could they not have been bickering?