ought to nitrify
Regular verb: nitrify - nitrified- nitrified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to nitrify
you ought to nitrify
he ought to nitrify
we ought to nitrify
you ought to nitrify
they ought to nitrify 	I ought to be nitrifying
you ought to be nitrifying
he ought to be nitrifying
we ought to be nitrifying
you ought to be nitrifying
they ought to be nitrifying	I ought to have nitrified
you ought to have nitrified
he ought to have nitrified
we ought to have nitrified
you ought to have nitrified
they ought to have nitrified	I ought to have been nitrifying
you ought to have been nitrifying
he ought to have been nitrifying
we ought to have been nitrifying
you ought to have been nitrifying
they ought to have been nitrifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to nitrify
you ought not to nitrify
he ought not to nitrify
we ought not to nitrify
you ought not to nitrify
they ought not to nitrify 	I ought not to nitrifying
you ought not to nitrifying
he ought not to nitrifying
we ought not to nitrifying
you ought not to nitrifying
they ought not to nitrifying	I ought not to have nitrified
you ought not to have nitrified
he ought not to have nitrified
we ought not to have nitrified
you ought not to have nitrified
they ought not to have nitrified	I ought not to have been nitrifying
you ought not to have been nitrifying
he ought not to have been nitrifying
we ought not to have been nitrifying
you ought not to have been nitrifying
they ought not to have been nitrifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I nitrify?
ought to you nitrify?
ought to he nitrify?
ought to we nitrify?
ought to you nitrify?
ought to they nitrify? 	ought to I be nitrifying?
ought to you be nitrifying?
ought to he be nitrifying?
ought to we be nitrifying?
ought to you be nitrifying?
ought to they be nitrifying? 	ought to I have nitrified?
ought to you have nitrified?
ought to he have nitrified?
ought to we have nitrified?
ought to you have nitrified?
ought to they have nitrified? 	ought to I have been nitrifying?
ought to you have been nitrifying?
ought to he have been nitrifying?
ought to we have been nitrifying?
ought to you have been nitrifying?
ought to they have been nitrifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to nitrify?
ought you not to nitrify?
ought he not to nitrify?
ought we not to nitrify?
ought you not to nitrify?
ought they not to nitrify? 	ought I not to be nitrifying?
ought you not to be nitrifying?
ought he not to be nitrifying?
ought we not to be nitrifying?
ought you not to be nitrifying?
ought they not to be nitrifying? 	ought I not to have nitrified?
ought you not to have nitrified?
ought he not to have nitrified?
ought we not to have nitrified?
ought you not to have nitrified?
ought they not to have nitrified? 	ought I not to have been nitrifying?
ought you not to have been nitrifying?
ought he not to have been nitrifying?
ought we not to have been nitrifying?
ought you not to have been nitrifying?
ought they not to have been nitrifying?