could hearken
Verbo regular: hearken - hearkened- hearkened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could hearken
you could hearken
he could hearken
we could hearken
you could hearken
they could hearken 	I could be hearkening
you could be hearkening
he could be hearkening
we could be hearkening
you could be hearkening
they could be hearkening	I could have hearkened
you could have hearkened
he could have hearkened
we could have hearkened
you could have hearkened
they could have hearkened	I could have been hearkening
you could have been hearkening
he could have been hearkening
we could have been hearkening
you could have been hearkening
they could have been hearkening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not hearken
you could not hearken
he could not hearken
we could not hearken
you could not hearken
they could not hearken 	I could not be hearkening
you could not be hearkening
he could not be hearkening
we could not be hearkening
you could not be hearkening
they could not be hearkening	I could not have hearkened
you could not have hearkened
he could not have hearkened
we could not have hearkened
you could not have hearkened
they could not have hearkened	I could not have been hearkening
you could not have been hearkening
he could not have been hearkening
we could not have been hearkening
you could not have been hearkening
they could not have been hearkening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I hearken?
could you hearken?
could he hearken?
could we hearken?
could you hearken?
could they hearken? 	could I be hearkening?
could you be hearkening?
could he be hearkening?
could we be hearkening?
could you be hearkening?
could they be hearkening? 	could I have hearkened?
could you have hearkened?
could he have hearkened?
could we have hearkened?
could you have hearkened?
could they have hearkened? 	could I have been hearkening?
could you have been hearkening?
could he have been hearkening?
could we have been hearkening?
could you have been hearkening?
could they have been hearkening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not hearken?
could you not hearken?
could he not hearken?
could we not hearken?
could you not hearken?
could they not hearken? 	could I not be hearkening?
could you not be hearkening?
could he not be hearkening?
could we not be hearkening?
could you not be hearkening?
could they not be hearkening? 	could I not have hearkened?
could you not have hearkened?
could he not have hearkened?
could we not have hearkened?
could you not have hearkened?
could they not have hearkened? 	could I not have been hearkening?
could you not have been hearkening?
could he not have been hearkening?
could we not have been hearkening?
could you not have been hearkening?
could they not have been hearkening?