ought to falsify
Regular verb: falsify - falsified- falsified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to falsify
you ought to falsify
he ought to falsify
we ought to falsify
you ought to falsify
they ought to falsify 	I ought to be falsifying
you ought to be falsifying
he ought to be falsifying
we ought to be falsifying
you ought to be falsifying
they ought to be falsifying	I ought to have falsified
you ought to have falsified
he ought to have falsified
we ought to have falsified
you ought to have falsified
they ought to have falsified	I ought to have been falsifying
you ought to have been falsifying
he ought to have been falsifying
we ought to have been falsifying
you ought to have been falsifying
they ought to have been falsifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to falsify
you oughtn't to falsify
he oughtn't to falsify
we oughtn't to falsify
you oughtn't to falsify
they oughtn't to falsify 	I oughtn't to be falsifying
you oughtn't to be falsifying
he oughtn't to be falsifying
we oughtn't to be falsifying
you oughtn't to be falsifying
they oughtn't to be falsifying	I oughtn't to have falsified
you oughtn't to have falsified
he oughtn't to have falsified
we oughtn't to have falsified
you oughtn't to have falsified
they oughtn't to have falsified	I oughtn't to have been falsifying
you oughtn't to have been falsifying
he oughtn't to have been falsifying
we oughtn't to have been falsifying
you oughtn't to have been falsifying
they oughtn't to have been falsifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I falsify?
ought to you falsify?
ought to he falsify?
ought to we falsify?
ought to you falsify?
ought to they falsify? 	ought to I be falsifying?
ought to you be falsifying?
ought to he be falsifying?
ought to we be falsifying?
ought to you be falsifying?
ought to they be falsifying? 	ought to I have falsified?
ought to you have falsified?
ought to he have falsified?
ought to we have falsified?
ought to you have falsified?
ought to they have falsified? 	ought to I have been falsifying?
ought to you have been falsifying?
ought to he have been falsifying?
ought to we have been falsifying?
ought to you have been falsifying?
ought to they have been falsifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to falsify?
oughtn't you to falsify?
oughtn't he to falsify?
oughtn't we to falsify?
oughtn't you to falsify?
oughtn't they to falsify? 	oughtn't I to be falsifying?
oughtn't you to be falsifying?
oughtn't he to be falsifying?
oughtn't we to be falsifying?
oughtn't you to be falsifying?
oughtn't they to be falsifying? 	oughtn't I to have falsified?
oughtn't you to have falsified?
oughtn't he to have falsified?
oughtn't we to have falsified?
oughtn't you to have falsified?
oughtn't they to have falsified? 	oughtn't I to have been falsifying?
oughtn't you to have been falsifying?
oughtn't he to have been falsifying?
oughtn't we to have been falsifying?
oughtn't you to have been falsifying?
oughtn't they to have been falsifying?