Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I ought to prognostic you ought to prognostic she ought to prognostic we ought to prognostic you ought to prognostic they ought to prognostic
V-ing form
I ought to be prognosticing you ought to be prognosticing she ought to be prognosticing we ought to be prognosticing you ought to be prognosticing they ought to be prognosticing
Perfect
I ought to have prognosticed you ought to have prognosticed she ought to have prognosticed we ought to have prognosticed you ought to have prognosticed they ought to have prognosticed
V-ing perfect
I ought to have been prognosticing you ought to have been prognosticing she ought to have been prognosticing we ought to have been prognosticing you ought to have been prognosticing they ought to have been prognosticing
Negation
Simple form
I oughtn't to prognostic you oughtn't to prognostic she oughtn't to prognostic we oughtn't to prognostic you oughtn't to prognostic they oughtn't to prognostic
V-ing form
I oughtn't to be prognosticing you oughtn't to be prognosticing she oughtn't to be prognosticing we oughtn't to be prognosticing you oughtn't to be prognosticing they oughtn't to be prognosticing
Perfect
I oughtn't to have prognosticed you oughtn't to have prognosticed she oughtn't to have prognosticed we oughtn't to have prognosticed you oughtn't to have prognosticed they oughtn't to have prognosticed
V-ing perfect
I oughtn't to have been prognosticing you oughtn't to have been prognosticing she oughtn't to have been prognosticing we oughtn't to have been prognosticing you oughtn't to have been prognosticing they oughtn't to have been prognosticing
Interrogative form
Simple form
ought to I prognostic? ought to you prognostic? ought to she prognostic? ought to we prognostic? ought to you prognostic? ought to they prognostic?
V-ing form
ought to I be prognosticing? ought to you be prognosticing? ought to she be prognosticing? ought to we be prognosticing? ought to you be prognosticing? ought to they be prognosticing?
Perfect
ought to I have prognosticed? ought to you have prognosticed? ought to she have prognosticed? ought to we have prognosticed? ought to you have prognosticed? ought to they have prognosticed?
V-ing perfect
ought to I have been prognosticing? ought to you have been prognosticing? ought to she have been prognosticing? ought to we have been prognosticing? ought to you have been prognosticing? ought to they have been prognosticing?
Interro-negative form
Simple form
oughtn't I to prognostic? oughtn't you to prognostic? oughtn't she to prognostic? oughtn't we to prognostic? oughtn't you to prognostic? oughtn't they to prognostic?
V-ing form
oughtn't I to be prognosticing? oughtn't you to be prognosticing? oughtn't she to be prognosticing? oughtn't we to be prognosticing? oughtn't you to be prognosticing? oughtn't they to be prognosticing?
Perfect
oughtn't I to have prognosticed? oughtn't you to have prognosticed? oughtn't she to have prognosticed? oughtn't we to have prognosticed? oughtn't you to have prognosticed? oughtn't they to have prognosticed?
V-ing perfect
oughtn't I to have been prognosticing? oughtn't you to have been prognosticing? oughtn't she to have been prognosticing? oughtn't we to have been prognosticing? oughtn't you to have been prognosticing? oughtn't they to have been prognosticing?