ought to frighten
Regular verb: frighten - frightened- frightened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to frighten
you ought to frighten
she ought to frighten
we ought to frighten
you ought to frighten
they ought to frighten 	I ought to be frightening
you ought to be frightening
she ought to be frightening
we ought to be frightening
you ought to be frightening
they ought to be frightening	I ought to have frightened
you ought to have frightened
she ought to have frightened
we ought to have frightened
you ought to have frightened
they ought to have frightened	I ought to have been frightening
you ought to have been frightening
she ought to have been frightening
we ought to have been frightening
you ought to have been frightening
they ought to have been frightening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to frighten
you oughtn't to frighten
she oughtn't to frighten
we oughtn't to frighten
you oughtn't to frighten
they oughtn't to frighten 	I oughtn't to be frightening
you oughtn't to be frightening
she oughtn't to be frightening
we oughtn't to be frightening
you oughtn't to be frightening
they oughtn't to be frightening	I oughtn't to have frightened
you oughtn't to have frightened
she oughtn't to have frightened
we oughtn't to have frightened
you oughtn't to have frightened
they oughtn't to have frightened	I oughtn't to have been frightening
you oughtn't to have been frightening
she oughtn't to have been frightening
we oughtn't to have been frightening
you oughtn't to have been frightening
they oughtn't to have been frightening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I frighten?
ought to you frighten?
ought to she frighten?
ought to we frighten?
ought to you frighten?
ought to they frighten? 	ought to I be frightening?
ought to you be frightening?
ought to she be frightening?
ought to we be frightening?
ought to you be frightening?
ought to they be frightening? 	ought to I have frightened?
ought to you have frightened?
ought to she have frightened?
ought to we have frightened?
ought to you have frightened?
ought to they have frightened? 	ought to I have been frightening?
ought to you have been frightening?
ought to she have been frightening?
ought to we have been frightening?
ought to you have been frightening?
ought to they have been frightening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to frighten?
oughtn't you to frighten?
oughtn't she to frighten?
oughtn't we to frighten?
oughtn't you to frighten?
oughtn't they to frighten? 	oughtn't I to be frightening?
oughtn't you to be frightening?
oughtn't she to be frightening?
oughtn't we to be frightening?
oughtn't you to be frightening?
oughtn't they to be frightening? 	oughtn't I to have frightened?
oughtn't you to have frightened?
oughtn't she to have frightened?
oughtn't we to have frightened?
oughtn't you to have frightened?
oughtn't they to have frightened? 	oughtn't I to have been frightening?
oughtn't you to have been frightening?
oughtn't she to have been frightening?
oughtn't we to have been frightening?
oughtn't you to have been frightening?
oughtn't they to have been frightening?