should hearken
Regular verb: hearken - hearkened- hearkened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should hearken
you should hearken
he should hearken
we should hearken
you should hearken
they should hearken 	I should be hearkening
you should be hearkening
he should be hearkening
we should be hearkening
you should be hearkening
they should be hearkening	I should have hearkened
you should have hearkened
he should have hearkened
we should have hearkened
you should have hearkened
they should have hearkened	I should have been hearkening
you should have been hearkening
he should have been hearkening
we should have been hearkening
you should have been hearkening
they should have been hearkening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not hearken
you should not hearken
he should not hearken
we should not hearken
you should not hearken
they should not hearken 	I should not be hearkening
you should not be hearkening
he should not be hearkening
we should not be hearkening
you should not be hearkening
they should not be hearkening	I should not have hearkened
you should not have hearkened
he should not have hearkened
we should not have hearkened
you should not have hearkened
they should not have hearkened	I should not have been hearkening
you should not have been hearkening
he should not have been hearkening
we should not have been hearkening
you should not have been hearkening
they should not have been hearkening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I hearken?
should you hearken?
should he hearken?
should we hearken?
should you hearken?
should they hearken? 	should I be hearkening?
should you be hearkening?
should he be hearkening?
should we be hearkening?
should you be hearkening?
should they be hearkening? 	should I have hearkened?
should you have hearkened?
should he have hearkened?
should we have hearkened?
should you have hearkened?
should they have hearkened? 	should I have been hearkening?
should you have been hearkening?
should he have been hearkening?
should we have been hearkening?
should you have been hearkening?
should they have been hearkening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not hearken?
should you not hearken?
should he not hearken?
should we not hearken?
should you not hearken?
should they not hearken? 	should I not be hearkening?
should you not be hearkening?
should he not be hearkening?
should we not be hearkening?
should you not be hearkening?
should they not be hearkening? 	should I not have hearkened?
should you not have hearkened?
should he not have hearkened?
should we not have hearkened?
should you not have hearkened?
should they not have hearkened? 	should I not have been hearkening?
should you not have been hearkening?
should he not have been hearkening?
should we not have been hearkening?
should you not have been hearkening?
should they not have been hearkening?