could chuck
Verbo regular: chuck - chucked- chucked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could chuck
you could chuck
he could chuck
we could chuck
you could chuck
they could chuck 	I could be chucking
you could be chucking
he could be chucking
we could be chucking
you could be chucking
they could be chucking	I could have chucked
you could have chucked
he could have chucked
we could have chucked
you could have chucked
they could have chucked	I could have been chucking
you could have been chucking
he could have been chucking
we could have been chucking
you could have been chucking
they could have been chucking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't chuck
you couldn't chuck
he couldn't chuck
we couldn't chuck
you couldn't chuck
they couldn't chuck 	I couldn't be chucking
you couldn't be chucking
he couldn't be chucking
we couldn't be chucking
you couldn't be chucking
they couldn't be chucking	I couldn't have chucked
you couldn't have chucked
he couldn't have chucked
we couldn't have chucked
you couldn't have chucked
they couldn't have chucked	I couldn't have been chucking
you couldn't have been chucking
he couldn't have been chucking
we couldn't have been chucking
you couldn't have been chucking
they couldn't have been chucking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I chuck?
could you chuck?
could he chuck?
could we chuck?
could you chuck?
could they chuck? 	could I be chucking?
could you be chucking?
could he be chucking?
could we be chucking?
could you be chucking?
could they be chucking? 	could I have chucked?
could you have chucked?
could he have chucked?
could we have chucked?
could you have chucked?
could they have chucked? 	could I have been chucking?
could you have been chucking?
could he have been chucking?
could we have been chucking?
could you have been chucking?
could they have been chucking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I chuck?
couldn't you chuck?
couldn't he chuck?
couldn't we chuck?
couldn't you chuck?
couldn't they chuck? 	couldn't I be chucking?
couldn't you be chucking?
couldn't he be chucking?
couldn't we be chucking?
couldn't you be chucking?
couldn't they be chucking? 	couldn't I have chucked?
couldn't you have chucked?
couldn't he have chucked?
couldn't we have chucked?
couldn't you have chucked?
couldn't they have chucked? 	couldn't I have been chucking?
couldn't you have been chucking?
couldn't he have been chucking?
couldn't we have been chucking?
couldn't you have been chucking?
couldn't they have been chucking?