ought to obsess
Regular verb: obsess - obsessed- obsessed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to obsess
you ought to obsess
she ought to obsess
we ought to obsess
you ought to obsess
they ought to obsess 	I ought to be obsessing
you ought to be obsessing
she ought to be obsessing
we ought to be obsessing
you ought to be obsessing
they ought to be obsessing	I ought to have obsessed
you ought to have obsessed
she ought to have obsessed
we ought to have obsessed
you ought to have obsessed
they ought to have obsessed	I ought to have been obsessing
you ought to have been obsessing
she ought to have been obsessing
we ought to have been obsessing
you ought to have been obsessing
they ought to have been obsessing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to obsess
you oughtn't to obsess
she oughtn't to obsess
we oughtn't to obsess
you oughtn't to obsess
they oughtn't to obsess 	I oughtn't to be obsessing
you oughtn't to be obsessing
she oughtn't to be obsessing
we oughtn't to be obsessing
you oughtn't to be obsessing
they oughtn't to be obsessing	I oughtn't to have obsessed
you oughtn't to have obsessed
she oughtn't to have obsessed
we oughtn't to have obsessed
you oughtn't to have obsessed
they oughtn't to have obsessed	I oughtn't to have been obsessing
you oughtn't to have been obsessing
she oughtn't to have been obsessing
we oughtn't to have been obsessing
you oughtn't to have been obsessing
they oughtn't to have been obsessing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I obsess?
ought to you obsess?
ought to she obsess?
ought to we obsess?
ought to you obsess?
ought to they obsess? 	ought to I be obsessing?
ought to you be obsessing?
ought to she be obsessing?
ought to we be obsessing?
ought to you be obsessing?
ought to they be obsessing? 	ought to I have obsessed?
ought to you have obsessed?
ought to she have obsessed?
ought to we have obsessed?
ought to you have obsessed?
ought to they have obsessed? 	ought to I have been obsessing?
ought to you have been obsessing?
ought to she have been obsessing?
ought to we have been obsessing?
ought to you have been obsessing?
ought to they have been obsessing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to obsess?
oughtn't you to obsess?
oughtn't she to obsess?
oughtn't we to obsess?
oughtn't you to obsess?
oughtn't they to obsess? 	oughtn't I to be obsessing?
oughtn't you to be obsessing?
oughtn't she to be obsessing?
oughtn't we to be obsessing?
oughtn't you to be obsessing?
oughtn't they to be obsessing? 	oughtn't I to have obsessed?
oughtn't you to have obsessed?
oughtn't she to have obsessed?
oughtn't we to have obsessed?
oughtn't you to have obsessed?
oughtn't they to have obsessed? 	oughtn't I to have been obsessing?
oughtn't you to have been obsessing?
oughtn't she to have been obsessing?
oughtn't we to have been obsessing?
oughtn't you to have been obsessing?
oughtn't they to have been obsessing?