English verb conjugation
OUGHT TO DISCERN

Regular verb: discern - discerned - discerned

Affirmation

Simple form	V-ing form
I ought to discern you ought to discern he ought to discern we ought to discern you ought to discern they ought to discern	I ought to be discerning you ought to be discerning he ought to be discerning we ought to be discerning you ought to be discerning they ought to be discerning
Perfect	V-ing perfect
I ought to have discerned you ought to have discerned he ought to have discerned we ought to have discerned you ought to have discerned they ought to have discerned	I ought to have been discerning you ought to have been discerning he ought to have been discerning we ought to have been discerning you ought to have been discerning they ought to have been discerning

Negation

Simple form	V-ing form
I oughtn't to discern you oughtn't to discern he oughtn't to discern we oughtn't to discern you oughtn't to discern they oughtn't to discern	I oughtn't to be discerning you oughtn't to be discerning he oughtn't to be discerning we oughtn't to be discerning you oughtn't to be discerning they oughtn't to be discerning
Perfect	V-ing perfect
I oughtn't to have discerned you oughtn't to have discerned he oughtn't to have discerned we oughtn't to have discerned you oughtn't to have discerned they oughtn't to have discerned	I oughtn't to have been discerning you oughtn't to have been discerning he oughtn't to have been discerning we oughtn't to have been discerning you oughtn't to have been discerning they oughtn't to have been discerning

Interrogative form

Simple form	V-ing form
ought to I discern? ought to you discern? ought to he discern? ought to we discern? ought to you discern? ought to they discern?	ought to I be discerning? ought to you be discerning? ought to he be discerning? ought to we be discerning? ought to you be discerning? ought to they be discerning?
Perfect	V-ing perfect
ought to I have discerned? ought to you have discerned? ought to he have discerned? ought to we have discerned? ought to you have discerned? ought to they have discerned?	ought to I have been discerning? ought to you have been discerning? ought to he have been discerning? ought to we have been discerning? ought to you have been discerning? ought to they have been discerning?

Interro-negative form

Simple form	V-ing form
oughtn't I to discern? oughtn't you to discern? oughtn't he to discern? oughtn't we to discern? oughtn't you to discern? oughtn't they to discern?	oughtn't I to be discerning? oughtn't you to be discerning? oughtn't he to be discerning? oughtn't we to be discerning? oughtn't you to be discerning? oughtn't they to be discerning?
Perfect	V-ing perfect
oughtn't I to have discerned? oughtn't you to have discerned? oughtn't he to have discerned? oughtn't we to have discerned? oughtn't you to have discerned? oughtn't they to have discerned?	oughtn't I to have been discerning? oughtn't you to have been discerning? oughtn't he to have been discerning? oughtn't we to have been discerning? oughtn't you to have been discerning? oughtn't they to have been discerning?