ought to diagnose
Regular verb: diagnose - diagnosed- diagnosed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to diagnose
you ought to diagnose
she ought to diagnose
we ought to diagnose
you ought to diagnose
they ought to diagnose 	I ought to be diagnosing
you ought to be diagnosing
she ought to be diagnosing
we ought to be diagnosing
you ought to be diagnosing
they ought to be diagnosing	I ought to have diagnosed
you ought to have diagnosed
she ought to have diagnosed
we ought to have diagnosed
you ought to have diagnosed
they ought to have diagnosed	I ought to have been diagnosing
you ought to have been diagnosing
she ought to have been diagnosing
we ought to have been diagnosing
you ought to have been diagnosing
they ought to have been diagnosing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to diagnose
you oughtn't to diagnose
she oughtn't to diagnose
we oughtn't to diagnose
you oughtn't to diagnose
they oughtn't to diagnose 	I oughtn't to be diagnosing
you oughtn't to be diagnosing
she oughtn't to be diagnosing
we oughtn't to be diagnosing
you oughtn't to be diagnosing
they oughtn't to be diagnosing	I oughtn't to have diagnosed
you oughtn't to have diagnosed
she oughtn't to have diagnosed
we oughtn't to have diagnosed
you oughtn't to have diagnosed
they oughtn't to have diagnosed	I oughtn't to have been diagnosing
you oughtn't to have been diagnosing
she oughtn't to have been diagnosing
we oughtn't to have been diagnosing
you oughtn't to have been diagnosing
they oughtn't to have been diagnosing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I diagnose?
ought to you diagnose?
ought to she diagnose?
ought to we diagnose?
ought to you diagnose?
ought to they diagnose? 	ought to I be diagnosing?
ought to you be diagnosing?
ought to she be diagnosing?
ought to we be diagnosing?
ought to you be diagnosing?
ought to they be diagnosing? 	ought to I have diagnosed?
ought to you have diagnosed?
ought to she have diagnosed?
ought to we have diagnosed?
ought to you have diagnosed?
ought to they have diagnosed? 	ought to I have been diagnosing?
ought to you have been diagnosing?
ought to she have been diagnosing?
ought to we have been diagnosing?
ought to you have been diagnosing?
ought to they have been diagnosing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to diagnose?
oughtn't you to diagnose?
oughtn't she to diagnose?
oughtn't we to diagnose?
oughtn't you to diagnose?
oughtn't they to diagnose? 	oughtn't I to be diagnosing?
oughtn't you to be diagnosing?
oughtn't she to be diagnosing?
oughtn't we to be diagnosing?
oughtn't you to be diagnosing?
oughtn't they to be diagnosing? 	oughtn't I to have diagnosed?
oughtn't you to have diagnosed?
oughtn't she to have diagnosed?
oughtn't we to have diagnosed?
oughtn't you to have diagnosed?
oughtn't they to have diagnosed? 	oughtn't I to have been diagnosing?
oughtn't you to have been diagnosing?
oughtn't she to have been diagnosing?
oughtn't we to have been diagnosing?
oughtn't you to have been diagnosing?
oughtn't they to have been diagnosing?