could chasten
Verbo regular: chasten - chastened- chastened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could chasten
you could chasten
he could chasten
we could chasten
you could chasten
they could chasten 	I could be chastening
you could be chastening
he could be chastening
we could be chastening
you could be chastening
they could be chastening	I could have chastened
you could have chastened
he could have chastened
we could have chastened
you could have chastened
they could have chastened	I could have been chastening
you could have been chastening
he could have been chastening
we could have been chastening
you could have been chastening
they could have been chastening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't chasten
you couldn't chasten
he couldn't chasten
we couldn't chasten
you couldn't chasten
they couldn't chasten 	I couldn't be chastening
you couldn't be chastening
he couldn't be chastening
we couldn't be chastening
you couldn't be chastening
they couldn't be chastening	I couldn't have chastened
you couldn't have chastened
he couldn't have chastened
we couldn't have chastened
you couldn't have chastened
they couldn't have chastened	I couldn't have been chastening
you couldn't have been chastening
he couldn't have been chastening
we couldn't have been chastening
you couldn't have been chastening
they couldn't have been chastening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I chasten?
could you chasten?
could he chasten?
could we chasten?
could you chasten?
could they chasten? 	could I be chastening?
could you be chastening?
could he be chastening?
could we be chastening?
could you be chastening?
could they be chastening? 	could I have chastened?
could you have chastened?
could he have chastened?
could we have chastened?
could you have chastened?
could they have chastened? 	could I have been chastening?
could you have been chastening?
could he have been chastening?
could we have been chastening?
could you have been chastening?
could they have been chastening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I chasten?
couldn't you chasten?
couldn't he chasten?
couldn't we chasten?
couldn't you chasten?
couldn't they chasten? 	couldn't I be chastening?
couldn't you be chastening?
couldn't he be chastening?
couldn't we be chastening?
couldn't you be chastening?
couldn't they be chastening? 	couldn't I have chastened?
couldn't you have chastened?
couldn't he have chastened?
couldn't we have chastened?
couldn't you have chastened?
couldn't they have chastened? 	couldn't I have been chastening?
couldn't you have been chastening?
couldn't he have been chastening?
couldn't we have been chastening?
couldn't you have been chastening?
couldn't they have been chastening?