ought to challenge
Regular verb: challenge - challenged- challenged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?