could cab
Verbo regular: cab - cabed- cabed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could cab
you could cab
he could cab
we could cab
you could cab
they could cab 	I could be cabing
you could be cabing
he could be cabing
we could be cabing
you could be cabing
they could be cabing	I could have cabed
you could have cabed
he could have cabed
we could have cabed
you could have cabed
they could have cabed	I could have been cabing
you could have been cabing
he could have been cabing
we could have been cabing
you could have been cabing
they could have been cabing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't cab
you couldn't cab
he couldn't cab
we couldn't cab
you couldn't cab
they couldn't cab 	I couldn't be cabing
you couldn't be cabing
he couldn't be cabing
we couldn't be cabing
you couldn't be cabing
they couldn't be cabing	I couldn't have cabed
you couldn't have cabed
he couldn't have cabed
we couldn't have cabed
you couldn't have cabed
they couldn't have cabed	I couldn't have been cabing
you couldn't have been cabing
he couldn't have been cabing
we couldn't have been cabing
you couldn't have been cabing
they couldn't have been cabing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I cab?
could you cab?
could he cab?
could we cab?
could you cab?
could they cab? 	could I be cabing?
could you be cabing?
could he be cabing?
could we be cabing?
could you be cabing?
could they be cabing? 	could I have cabed?
could you have cabed?
could he have cabed?
could we have cabed?
could you have cabed?
could they have cabed? 	could I have been cabing?
could you have been cabing?
could he have been cabing?
could we have been cabing?
could you have been cabing?
could they have been cabing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I cab?
couldn't you cab?
couldn't he cab?
couldn't we cab?
couldn't you cab?
couldn't they cab? 	couldn't I be cabing?
couldn't you be cabing?
couldn't he be cabing?
couldn't we be cabing?
couldn't you be cabing?
couldn't they be cabing? 	couldn't I have cabed?
couldn't you have cabed?
couldn't he have cabed?
couldn't we have cabed?
couldn't you have cabed?
couldn't they have cabed? 	couldn't I have been cabing?
couldn't you have been cabing?
couldn't he have been cabing?
couldn't we have been cabing?
couldn't you have been cabing?
couldn't they have been cabing?