could better
Verbo regular: better - bettered- bettered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could better
you could better
he could better
we could better
you could better
they could better 	I could be bettering
you could be bettering
he could be bettering
we could be bettering
you could be bettering
they could be bettering	I could have bettered
you could have bettered
he could have bettered
we could have bettered
you could have bettered
they could have bettered	I could have been bettering
you could have been bettering
he could have been bettering
we could have been bettering
you could have been bettering
they could have been bettering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't better
you couldn't better
he couldn't better
we couldn't better
you couldn't better
they couldn't better 	I couldn't be bettering
you couldn't be bettering
he couldn't be bettering
we couldn't be bettering
you couldn't be bettering
they couldn't be bettering	I couldn't have bettered
you couldn't have bettered
he couldn't have bettered
we couldn't have bettered
you couldn't have bettered
they couldn't have bettered	I couldn't have been bettering
you couldn't have been bettering
he couldn't have been bettering
we couldn't have been bettering
you couldn't have been bettering
they couldn't have been bettering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I better?
could you better?
could he better?
could we better?
could you better?
could they better? 	could I be bettering?
could you be bettering?
could he be bettering?
could we be bettering?
could you be bettering?
could they be bettering? 	could I have bettered?
could you have bettered?
could he have bettered?
could we have bettered?
could you have bettered?
could they have bettered? 	could I have been bettering?
could you have been bettering?
could he have been bettering?
could we have been bettering?
could you have been bettering?
could they have been bettering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I better?
couldn't you better?
couldn't he better?
couldn't we better?
couldn't you better?
couldn't they better? 	couldn't I be bettering?
couldn't you be bettering?
couldn't he be bettering?
couldn't we be bettering?
couldn't you be bettering?
couldn't they be bettering? 	couldn't I have bettered?
couldn't you have bettered?
couldn't he have bettered?
couldn't we have bettered?
couldn't you have bettered?
couldn't they have bettered? 	couldn't I have been bettering?
couldn't you have been bettering?
couldn't he have been bettering?
couldn't we have been bettering?
couldn't you have been bettering?
couldn't they have been bettering?