English verb conjugation
OUGHT TO CHALLENGE

Regular verb: challenge - challenged - challenged

Affirmation

Simple form	V-ing form
I ought to challenge you ought to challenge he ought to challenge we ought to challenge you ought to challenge they ought to challenge	I ought to be challenging you ought to be challenging he ought to be challenging we ought to be challenging you ought to be challenging they ought to be challenging
Perfect	V-ing perfect
I ought to have challenged you ought to have challenged he ought to have challenged we ought to have challenged you ought to have challenged they ought to have challenged	I ought to have been challenging you ought to have been challenging he ought to have been challenging we ought to have been challenging you ought to have been challenging they ought to have been challenging

Negation

Simple form	V-ing form
I oughtn't to challenge you oughtn't to challenge he oughtn't to challenge we oughtn't to challenge you oughtn't to challenge they oughtn't to challenge	I oughtn't to be challenging you oughtn't to be challenging he oughtn't to be challenging we oughtn't to be challenging you oughtn't to be challenging they oughtn't to be challenging
Perfect	V-ing perfect
I oughtn't to have challenged you oughtn't to have challenged he oughtn't to have challenged we oughtn't to have challenged you oughtn't to have challenged they oughtn't to have challenged	I oughtn't to have been challenging you oughtn't to have been challenging he oughtn't to have been challenging we oughtn't to have been challenging you oughtn't to have been challenging they oughtn't to have been challenging

Interrogative form

Simple form	V-ing form
ought to I challenge? ought to you challenge? ought to he challenge? ought to we challenge? ought to you challenge? ought to they challenge?	ought to I be challenging? ought to you be challenging? ought to he be challenging? ought to we be challenging? ought to you be challenging? ought to they be challenging?
Perfect	V-ing perfect
ought to I have challenged? ought to you have challenged? ought to he have challenged? ought to we have challenged? ought to you have challenged? ought to they have challenged?	ought to I have been challenging? ought to you have been challenging? ought to he have been challenging? ought to we have been challenging? ought to you have been challenging? ought to they have been challenging?

Interro-negative form

Simple form	V-ing form
oughtn't I to challenge? oughtn't you to challenge? oughtn't he to challenge? oughtn't we to challenge? oughtn't you to challenge? oughtn't they to challenge?	oughtn't I to be challenging? oughtn't you to be challenging? oughtn't he to be challenging? oughtn't we to be challenging? oughtn't you to be challenging? oughtn't they to be challenging?
Perfect	V-ing perfect
oughtn't I to have challenged? oughtn't you to have challenged? oughtn't he to have challenged? oughtn't we to have challenged? oughtn't you to have challenged? oughtn't they to have challenged?	oughtn't I to have been challenging? oughtn't you to have been challenging? oughtn't he to have been challenging? oughtn't we to have been challenging? oughtn't you to have been challenging? oughtn't they to have been challenging?