could sober
Verbo regular: sober - sobered- sobered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could sober
you could sober
she could sober
we could sober
you could sober
they could sober 	I could be sobering
you could be sobering
she could be sobering
we could be sobering
you could be sobering
they could be sobering	I could have sobered
you could have sobered
she could have sobered
we could have sobered
you could have sobered
they could have sobered	I could have been sobering
you could have been sobering
she could have been sobering
we could have been sobering
you could have been sobering
they could have been sobering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not sober
you could not sober
she could not sober
we could not sober
you could not sober
they could not sober 	I could not be sobering
you could not be sobering
she could not be sobering
we could not be sobering
you could not be sobering
they could not be sobering	I could not have sobered
you could not have sobered
she could not have sobered
we could not have sobered
you could not have sobered
they could not have sobered	I could not have been sobering
you could not have been sobering
she could not have been sobering
we could not have been sobering
you could not have been sobering
they could not have been sobering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I sober?
could you sober?
could she sober?
could we sober?
could you sober?
could they sober? 	could I be sobering?
could you be sobering?
could she be sobering?
could we be sobering?
could you be sobering?
could they be sobering? 	could I have sobered?
could you have sobered?
could she have sobered?
could we have sobered?
could you have sobered?
could they have sobered? 	could I have been sobering?
could you have been sobering?
could she have been sobering?
could we have been sobering?
could you have been sobering?
could they have been sobering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not sober?
could you not sober?
could she not sober?
could we not sober?
could you not sober?
could they not sober? 	could I not be sobering?
could you not be sobering?
could she not be sobering?
could we not be sobering?
could you not be sobering?
could they not be sobering? 	could I not have sobered?
could you not have sobered?
could she not have sobered?
could we not have sobered?
could you not have sobered?
could they not have sobered? 	could I not have been sobering?
could you not have been sobering?
could she not have been sobering?
could we not have been sobering?
could you not have been sobering?
could they not have been sobering?