ought to disbelieve
Regular verb: disbelieve - disbelieved- disbelieved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to disbelieve
you ought to disbelieve
he ought to disbelieve
we ought to disbelieve
you ought to disbelieve
they ought to disbelieve 	I ought to be disbelieving
you ought to be disbelieving
he ought to be disbelieving
we ought to be disbelieving
you ought to be disbelieving
they ought to be disbelieving	I ought to have disbelieved
you ought to have disbelieved
he ought to have disbelieved
we ought to have disbelieved
you ought to have disbelieved
they ought to have disbelieved	I ought to have been disbelieving
you ought to have been disbelieving
he ought to have been disbelieving
we ought to have been disbelieving
you ought to have been disbelieving
they ought to have been disbelieving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to disbelieve
you oughtn't to disbelieve
he oughtn't to disbelieve
we oughtn't to disbelieve
you oughtn't to disbelieve
they oughtn't to disbelieve 	I oughtn't to be disbelieving
you oughtn't to be disbelieving
he oughtn't to be disbelieving
we oughtn't to be disbelieving
you oughtn't to be disbelieving
they oughtn't to be disbelieving	I oughtn't to have disbelieved
you oughtn't to have disbelieved
he oughtn't to have disbelieved
we oughtn't to have disbelieved
you oughtn't to have disbelieved
they oughtn't to have disbelieved	I oughtn't to have been disbelieving
you oughtn't to have been disbelieving
he oughtn't to have been disbelieving
we oughtn't to have been disbelieving
you oughtn't to have been disbelieving
they oughtn't to have been disbelieving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I disbelieve?
ought to you disbelieve?
ought to he disbelieve?
ought to we disbelieve?
ought to you disbelieve?
ought to they disbelieve? 	ought to I be disbelieving?
ought to you be disbelieving?
ought to he be disbelieving?
ought to we be disbelieving?
ought to you be disbelieving?
ought to they be disbelieving? 	ought to I have disbelieved?
ought to you have disbelieved?
ought to he have disbelieved?
ought to we have disbelieved?
ought to you have disbelieved?
ought to they have disbelieved? 	ought to I have been disbelieving?
ought to you have been disbelieving?
ought to he have been disbelieving?
ought to we have been disbelieving?
ought to you have been disbelieving?
ought to they have been disbelieving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to disbelieve?
oughtn't you to disbelieve?
oughtn't he to disbelieve?
oughtn't we to disbelieve?
oughtn't you to disbelieve?
oughtn't they to disbelieve? 	oughtn't I to be disbelieving?
oughtn't you to be disbelieving?
oughtn't he to be disbelieving?
oughtn't we to be disbelieving?
oughtn't you to be disbelieving?
oughtn't they to be disbelieving? 	oughtn't I to have disbelieved?
oughtn't you to have disbelieved?
oughtn't he to have disbelieved?
oughtn't we to have disbelieved?
oughtn't you to have disbelieved?
oughtn't they to have disbelieved? 	oughtn't I to have been disbelieving?
oughtn't you to have been disbelieving?
oughtn't he to have been disbelieving?
oughtn't we to have been disbelieving?
oughtn't you to have been disbelieving?
oughtn't they to have been disbelieving?