ought to denitrify
Regular verb: denitrify - denitrified- denitrified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to denitrify
you ought to denitrify
he ought to denitrify
we ought to denitrify
you ought to denitrify
they ought to denitrify 	I ought to be denitrifying
you ought to be denitrifying
he ought to be denitrifying
we ought to be denitrifying
you ought to be denitrifying
they ought to be denitrifying	I ought to have denitrified
you ought to have denitrified
he ought to have denitrified
we ought to have denitrified
you ought to have denitrified
they ought to have denitrified	I ought to have been denitrifying
you ought to have been denitrifying
he ought to have been denitrifying
we ought to have been denitrifying
you ought to have been denitrifying
they ought to have been denitrifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to denitrify
you oughtn't to denitrify
he oughtn't to denitrify
we oughtn't to denitrify
you oughtn't to denitrify
they oughtn't to denitrify 	I oughtn't to be denitrifying
you oughtn't to be denitrifying
he oughtn't to be denitrifying
we oughtn't to be denitrifying
you oughtn't to be denitrifying
they oughtn't to be denitrifying	I oughtn't to have denitrified
you oughtn't to have denitrified
he oughtn't to have denitrified
we oughtn't to have denitrified
you oughtn't to have denitrified
they oughtn't to have denitrified	I oughtn't to have been denitrifying
you oughtn't to have been denitrifying
he oughtn't to have been denitrifying
we oughtn't to have been denitrifying
you oughtn't to have been denitrifying
they oughtn't to have been denitrifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I denitrify?
ought to you denitrify?
ought to he denitrify?
ought to we denitrify?
ought to you denitrify?
ought to they denitrify? 	ought to I be denitrifying?
ought to you be denitrifying?
ought to he be denitrifying?
ought to we be denitrifying?
ought to you be denitrifying?
ought to they be denitrifying? 	ought to I have denitrified?
ought to you have denitrified?
ought to he have denitrified?
ought to we have denitrified?
ought to you have denitrified?
ought to they have denitrified? 	ought to I have been denitrifying?
ought to you have been denitrifying?
ought to he have been denitrifying?
ought to we have been denitrifying?
ought to you have been denitrifying?
ought to they have been denitrifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to denitrify?
oughtn't you to denitrify?
oughtn't he to denitrify?
oughtn't we to denitrify?
oughtn't you to denitrify?
oughtn't they to denitrify? 	oughtn't I to be denitrifying?
oughtn't you to be denitrifying?
oughtn't he to be denitrifying?
oughtn't we to be denitrifying?
oughtn't you to be denitrifying?
oughtn't they to be denitrifying? 	oughtn't I to have denitrified?
oughtn't you to have denitrified?
oughtn't he to have denitrified?
oughtn't we to have denitrified?
oughtn't you to have denitrified?
oughtn't they to have denitrified? 	oughtn't I to have been denitrifying?
oughtn't you to have been denitrifying?
oughtn't he to have been denitrifying?
oughtn't we to have been denitrifying?
oughtn't you to have been denitrifying?
oughtn't they to have been denitrifying?