could bib
Verbo regular: bib - bibed- bibed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could bib
you could bib
he could bib
we could bib
you could bib
they could bib 	I could be bibing
you could be bibing
he could be bibing
we could be bibing
you could be bibing
they could be bibing	I could have bibed
you could have bibed
he could have bibed
we could have bibed
you could have bibed
they could have bibed	I could have been bibing
you could have been bibing
he could have been bibing
we could have been bibing
you could have been bibing
they could have been bibing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't bib
you couldn't bib
he couldn't bib
we couldn't bib
you couldn't bib
they couldn't bib 	I couldn't be bibing
you couldn't be bibing
he couldn't be bibing
we couldn't be bibing
you couldn't be bibing
they couldn't be bibing	I couldn't have bibed
you couldn't have bibed
he couldn't have bibed
we couldn't have bibed
you couldn't have bibed
they couldn't have bibed	I couldn't have been bibing
you couldn't have been bibing
he couldn't have been bibing
we couldn't have been bibing
you couldn't have been bibing
they couldn't have been bibing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I bib?
could you bib?
could he bib?
could we bib?
could you bib?
could they bib? 	could I be bibing?
could you be bibing?
could he be bibing?
could we be bibing?
could you be bibing?
could they be bibing? 	could I have bibed?
could you have bibed?
could he have bibed?
could we have bibed?
could you have bibed?
could they have bibed? 	could I have been bibing?
could you have been bibing?
could he have been bibing?
could we have been bibing?
could you have been bibing?
could they have been bibing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I bib?
couldn't you bib?
couldn't he bib?
couldn't we bib?
couldn't you bib?
couldn't they bib? 	couldn't I be bibing?
couldn't you be bibing?
couldn't he be bibing?
couldn't we be bibing?
couldn't you be bibing?
couldn't they be bibing? 	couldn't I have bibed?
couldn't you have bibed?
couldn't he have bibed?
couldn't we have bibed?
couldn't you have bibed?
couldn't they have bibed? 	couldn't I have been bibing?
couldn't you have been bibing?
couldn't he have been bibing?
couldn't we have been bibing?
couldn't you have been bibing?
couldn't they have been bibing?