ought to harken
Regular verb: harken - harkened- harkened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to harken
you ought to harken
he ought to harken
we ought to harken
you ought to harken
they ought to harken 	I ought to be harkening
you ought to be harkening
he ought to be harkening
we ought to be harkening
you ought to be harkening
they ought to be harkening	I ought to have harkened
you ought to have harkened
he ought to have harkened
we ought to have harkened
you ought to have harkened
they ought to have harkened	I ought to have been harkening
you ought to have been harkening
he ought to have been harkening
we ought to have been harkening
you ought to have been harkening
they ought to have been harkening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to harken
you ought not to harken
he ought not to harken
we ought not to harken
you ought not to harken
they ought not to harken 	I ought not to harkening
you ought not to harkening
he ought not to harkening
we ought not to harkening
you ought not to harkening
they ought not to harkening	I ought not to have harkened
you ought not to have harkened
he ought not to have harkened
we ought not to have harkened
you ought not to have harkened
they ought not to have harkened	I ought not to have been harkening
you ought not to have been harkening
he ought not to have been harkening
we ought not to have been harkening
you ought not to have been harkening
they ought not to have been harkening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I harken?
ought to you harken?
ought to he harken?
ought to we harken?
ought to you harken?
ought to they harken? 	ought to I be harkening?
ought to you be harkening?
ought to he be harkening?
ought to we be harkening?
ought to you be harkening?
ought to they be harkening? 	ought to I have harkened?
ought to you have harkened?
ought to he have harkened?
ought to we have harkened?
ought to you have harkened?
ought to they have harkened? 	ought to I have been harkening?
ought to you have been harkening?
ought to he have been harkening?
ought to we have been harkening?
ought to you have been harkening?
ought to they have been harkening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to harken?
ought you not to harken?
ought he not to harken?
ought we not to harken?
ought you not to harken?
ought they not to harken? 	ought I not to be harkening?
ought you not to be harkening?
ought he not to be harkening?
ought we not to be harkening?
ought you not to be harkening?
ought they not to be harkening? 	ought I not to have harkened?
ought you not to have harkened?
ought he not to have harkened?
ought we not to have harkened?
ought you not to have harkened?
ought they not to have harkened? 	ought I not to have been harkening?
ought you not to have been harkening?
ought he not to have been harkening?
ought we not to have been harkening?
ought you not to have been harkening?
ought they not to have been harkening?