could canton
Verbo regular: canton - cantoned- cantoned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could canton
you could canton
he could canton
we could canton
you could canton
they could canton 	I could be cantoning
you could be cantoning
he could be cantoning
we could be cantoning
you could be cantoning
they could be cantoning	I could have cantoned
you could have cantoned
he could have cantoned
we could have cantoned
you could have cantoned
they could have cantoned	I could have been cantoning
you could have been cantoning
he could have been cantoning
we could have been cantoning
you could have been cantoning
they could have been cantoning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not canton
you could not canton
he could not canton
we could not canton
you could not canton
they could not canton 	I could not be cantoning
you could not be cantoning
he could not be cantoning
we could not be cantoning
you could not be cantoning
they could not be cantoning	I could not have cantoned
you could not have cantoned
he could not have cantoned
we could not have cantoned
you could not have cantoned
they could not have cantoned	I could not have been cantoning
you could not have been cantoning
he could not have been cantoning
we could not have been cantoning
you could not have been cantoning
they could not have been cantoning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I canton?
could you canton?
could he canton?
could we canton?
could you canton?
could they canton? 	could I be cantoning?
could you be cantoning?
could he be cantoning?
could we be cantoning?
could you be cantoning?
could they be cantoning? 	could I have cantoned?
could you have cantoned?
could he have cantoned?
could we have cantoned?
could you have cantoned?
could they have cantoned? 	could I have been cantoning?
could you have been cantoning?
could he have been cantoning?
could we have been cantoning?
could you have been cantoning?
could they have been cantoning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not canton?
could you not canton?
could he not canton?
could we not canton?
could you not canton?
could they not canton? 	could I not be cantoning?
could you not be cantoning?
could he not be cantoning?
could we not be cantoning?
could you not be cantoning?
could they not be cantoning? 	could I not have cantoned?
could you not have cantoned?
could he not have cantoned?
could we not have cantoned?
could you not have cantoned?
could they not have cantoned? 	could I not have been cantoning?
could you not have been cantoning?
could he not have been cantoning?
could we not have been cantoning?
could you not have been cantoning?
could they not have been cantoning?