ought to doubt doubt doubt doubt
Regular verb: doubt doubt doubt doubt - doubt doubt doubt doubted- doubt doubt doubt doubted

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to doubt doubt doubt doubt
you ought to doubt doubt doubt doubt
he ought to doubt doubt doubt doubt
we ought to doubt doubt doubt doubt
you ought to doubt doubt doubt doubt
they ought to doubt doubt doubt doubt 	I ought to be doubt doubt doubt doubting
you ought to be doubt doubt doubt doubting
he ought to be doubt doubt doubt doubting
we ought to be doubt doubt doubt doubting
you ought to be doubt doubt doubt doubting
they ought to be doubt doubt doubt doubting	I ought to have doubt doubt doubt doubted
you ought to have doubt doubt doubt doubted
he ought to have doubt doubt doubt doubted
we ought to have doubt doubt doubt doubted
you ought to have doubt doubt doubt doubted
they ought to have doubt doubt doubt doubted	I ought to have been doubt doubt doubt doubting
you ought to have been doubt doubt doubt doubting
he ought to have been doubt doubt doubt doubting
we ought to have been doubt doubt doubt doubting
you ought to have been doubt doubt doubt doubting
they ought to have been doubt doubt doubt doubting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to doubt doubt doubt doubt
you oughtn't to doubt doubt doubt doubt
he oughtn't to doubt doubt doubt doubt
we oughtn't to doubt doubt doubt doubt
you oughtn't to doubt doubt doubt doubt
they oughtn't to doubt doubt doubt doubt 	I oughtn't to be doubt doubt doubt doubting
you oughtn't to be doubt doubt doubt doubting
he oughtn't to be doubt doubt doubt doubting
we oughtn't to be doubt doubt doubt doubting
you oughtn't to be doubt doubt doubt doubting
they oughtn't to be doubt doubt doubt doubting	I oughtn't to have doubt doubt doubt doubted
you oughtn't to have doubt doubt doubt doubted
he oughtn't to have doubt doubt doubt doubted
we oughtn't to have doubt doubt doubt doubted
you oughtn't to have doubt doubt doubt doubted
they oughtn't to have doubt doubt doubt doubted	I oughtn't to have been doubt doubt doubt doubting
you oughtn't to have been doubt doubt doubt doubting
he oughtn't to have been doubt doubt doubt doubting
we oughtn't to have been doubt doubt doubt doubting
you oughtn't to have been doubt doubt doubt doubting
they oughtn't to have been doubt doubt doubt doubting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I doubt doubt doubt doubt?
ought to you doubt doubt doubt doubt?
ought to he doubt doubt doubt doubt?
ought to we doubt doubt doubt doubt?
ought to you doubt doubt doubt doubt?
ought to they doubt doubt doubt doubt? 	ought to I be doubt doubt doubt doubting?
ought to you be doubt doubt doubt doubting?
ought to he be doubt doubt doubt doubting?
ought to we be doubt doubt doubt doubting?
ought to you be doubt doubt doubt doubting?
ought to they be doubt doubt doubt doubting? 	ought to I have doubt doubt doubt doubted?
ought to you have doubt doubt doubt doubted?
ought to he have doubt doubt doubt doubted?
ought to we have doubt doubt doubt doubted?
ought to you have doubt doubt doubt doubted?
ought to they have doubt doubt doubt doubted? 	ought to I have been doubt doubt doubt doubting?
ought to you have been doubt doubt doubt doubting?
ought to he have been doubt doubt doubt doubting?
ought to we have been doubt doubt doubt doubting?
ought to you have been doubt doubt doubt doubting?
ought to they have been doubt doubt doubt doubting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to doubt doubt doubt doubt?
oughtn't you to doubt doubt doubt doubt?
oughtn't he to doubt doubt doubt doubt?
oughtn't we to doubt doubt doubt doubt?
oughtn't you to doubt doubt doubt doubt?
oughtn't they to doubt doubt doubt doubt? 	oughtn't I to be doubt doubt doubt doubting?
oughtn't you to be doubt doubt doubt doubting?
oughtn't he to be doubt doubt doubt doubting?
oughtn't we to be doubt doubt doubt doubting?
oughtn't you to be doubt doubt doubt doubting?
oughtn't they to be doubt doubt doubt doubting? 	oughtn't I to have doubt doubt doubt doubted?
oughtn't you to have doubt doubt doubt doubted?
oughtn't he to have doubt doubt doubt doubted?
oughtn't we to have doubt doubt doubt doubted?
oughtn't you to have doubt doubt doubt doubted?
oughtn't they to have doubt doubt doubt doubted? 	oughtn't I to have been doubt doubt doubt doubting?
oughtn't you to have been doubt doubt doubt doubting?
oughtn't he to have been doubt doubt doubt doubting?
oughtn't we to have been doubt doubt doubt doubting?
oughtn't you to have been doubt doubt doubt doubting?
oughtn't they to have been doubt doubt doubt doubting?