ought to harness
Regular verb: harness - harnessed- harnessed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to harness
you ought to harness
he ought to harness
we ought to harness
you ought to harness
they ought to harness 	I ought to be harnessing
you ought to be harnessing
he ought to be harnessing
we ought to be harnessing
you ought to be harnessing
they ought to be harnessing	I ought to have harnessed
you ought to have harnessed
he ought to have harnessed
we ought to have harnessed
you ought to have harnessed
they ought to have harnessed	I ought to have been harnessing
you ought to have been harnessing
he ought to have been harnessing
we ought to have been harnessing
you ought to have been harnessing
they ought to have been harnessing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to harness
you oughtn't to harness
he oughtn't to harness
we oughtn't to harness
you oughtn't to harness
they oughtn't to harness 	I oughtn't to be harnessing
you oughtn't to be harnessing
he oughtn't to be harnessing
we oughtn't to be harnessing
you oughtn't to be harnessing
they oughtn't to be harnessing	I oughtn't to have harnessed
you oughtn't to have harnessed
he oughtn't to have harnessed
we oughtn't to have harnessed
you oughtn't to have harnessed
they oughtn't to have harnessed	I oughtn't to have been harnessing
you oughtn't to have been harnessing
he oughtn't to have been harnessing
we oughtn't to have been harnessing
you oughtn't to have been harnessing
they oughtn't to have been harnessing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I harness?
ought to you harness?
ought to he harness?
ought to we harness?
ought to you harness?
ought to they harness? 	ought to I be harnessing?
ought to you be harnessing?
ought to he be harnessing?
ought to we be harnessing?
ought to you be harnessing?
ought to they be harnessing? 	ought to I have harnessed?
ought to you have harnessed?
ought to he have harnessed?
ought to we have harnessed?
ought to you have harnessed?
ought to they have harnessed? 	ought to I have been harnessing?
ought to you have been harnessing?
ought to he have been harnessing?
ought to we have been harnessing?
ought to you have been harnessing?
ought to they have been harnessing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to harness?
oughtn't you to harness?
oughtn't he to harness?
oughtn't we to harness?
oughtn't you to harness?
oughtn't they to harness? 	oughtn't I to be harnessing?
oughtn't you to be harnessing?
oughtn't he to be harnessing?
oughtn't we to be harnessing?
oughtn't you to be harnessing?
oughtn't they to be harnessing? 	oughtn't I to have harnessed?
oughtn't you to have harnessed?
oughtn't he to have harnessed?
oughtn't we to have harnessed?
oughtn't you to have harnessed?
oughtn't they to have harnessed? 	oughtn't I to have been harnessing?
oughtn't you to have been harnessing?
oughtn't he to have been harnessing?
oughtn't we to have been harnessing?
oughtn't you to have been harnessing?
oughtn't they to have been harnessing?