ought to rival
Regular verb: rival - rivalled- rivalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to rival
you ought to rival
he ought to rival
we ought to rival
you ought to rival
they ought to rival 	I ought to be rivalling
you ought to be rivalling
he ought to be rivalling
we ought to be rivalling
you ought to be rivalling
they ought to be rivalling	I ought to have rivalled
you ought to have rivalled
he ought to have rivalled
we ought to have rivalled
you ought to have rivalled
they ought to have rivalled	I ought to have been rivalling
you ought to have been rivalling
he ought to have been rivalling
we ought to have been rivalling
you ought to have been rivalling
they ought to have been rivalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to rival
you oughtn't to rival
he oughtn't to rival
we oughtn't to rival
you oughtn't to rival
they oughtn't to rival 	I oughtn't to be rivalling
you oughtn't to be rivalling
he oughtn't to be rivalling
we oughtn't to be rivalling
you oughtn't to be rivalling
they oughtn't to be rivalling	I oughtn't to have rivalled
you oughtn't to have rivalled
he oughtn't to have rivalled
we oughtn't to have rivalled
you oughtn't to have rivalled
they oughtn't to have rivalled	I oughtn't to have been rivalling
you oughtn't to have been rivalling
he oughtn't to have been rivalling
we oughtn't to have been rivalling
you oughtn't to have been rivalling
they oughtn't to have been rivalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I rival?
ought to you rival?
ought to he rival?
ought to we rival?
ought to you rival?
ought to they rival? 	ought to I be rivalling?
ought to you be rivalling?
ought to he be rivalling?
ought to we be rivalling?
ought to you be rivalling?
ought to they be rivalling? 	ought to I have rivalled?
ought to you have rivalled?
ought to he have rivalled?
ought to we have rivalled?
ought to you have rivalled?
ought to they have rivalled? 	ought to I have been rivalling?
ought to you have been rivalling?
ought to he have been rivalling?
ought to we have been rivalling?
ought to you have been rivalling?
ought to they have been rivalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to rival?
oughtn't you to rival?
oughtn't he to rival?
oughtn't we to rival?
oughtn't you to rival?
oughtn't they to rival? 	oughtn't I to be rivalling?
oughtn't you to be rivalling?
oughtn't he to be rivalling?
oughtn't we to be rivalling?
oughtn't you to be rivalling?
oughtn't they to be rivalling? 	oughtn't I to have rivalled?
oughtn't you to have rivalled?
oughtn't he to have rivalled?
oughtn't we to have rivalled?
oughtn't you to have rivalled?
oughtn't they to have rivalled? 	oughtn't I to have been rivalling?
oughtn't you to have been rivalling?
oughtn't he to have been rivalling?
oughtn't we to have been rivalling?
oughtn't you to have been rivalling?
oughtn't they to have been rivalling?