English verb conjugation
OUGHT TO DISCOVER

Regular verb: discover - discovered - discovered

Affirmation

Simple form	V-ing form
I ought to discover you ought to discover she ought to discover we ought to discover you ought to discover they ought to discover	I ought to be discovering you ought to be discovering she ought to be discovering we ought to be discovering you ought to be discovering they ought to be discovering
Perfect	V-ing perfect
I ought to have discovered you ought to have discovered she ought to have discovered we ought to have discovered you ought to have discovered they ought to have discovered	I ought to have been discovering you ought to have been discovering she ought to have been discovering we ought to have been discovering you ought to have been discovering they ought to have been discovering

Negation

Simple form	V-ing form
I oughtn't to discover you oughtn't to discover she oughtn't to discover we oughtn't to discover you oughtn't to discover they oughtn't to discover	I oughtn't to be discovering you oughtn't to be discovering she oughtn't to be discovering we oughtn't to be discovering you oughtn't to be discovering they oughtn't to be discovering
Perfect	V-ing perfect
I oughtn't to have discovered you oughtn't to have discovered she oughtn't to have discovered we oughtn't to have discovered you oughtn't to have discovered they oughtn't to have discovered	I oughtn't to have been discovering you oughtn't to have been discovering she oughtn't to have been discovering we oughtn't to have been discovering you oughtn't to have been discovering they oughtn't to have been discovering

Interrogative form

Simple form	V-ing form
ought to I discover? ought to you discover? ought to she discover? ought to we discover? ought to you discover? ought to they discover?	ought to I be discovering? ought to you be discovering? ought to she be discovering? ought to we be discovering? ought to you be discovering? ought to they be discovering?
Perfect	V-ing perfect
ought to I have discovered? ought to you have discovered? ought to she have discovered? ought to we have discovered? ought to you have discovered? ought to they have discovered?	ought to I have been discovering? ought to you have been discovering? ought to she have been discovering? ought to we have been discovering? ought to you have been discovering? ought to they have been discovering?

Interro-negative form

Simple form	V-ing form
oughtn't I to discover? oughtn't you to discover? oughtn't she to discover? oughtn't we to discover? oughtn't you to discover? oughtn't they to discover?	oughtn't I to be discovering? oughtn't you to be discovering? oughtn't she to be discovering? oughtn't we to be discovering? oughtn't you to be discovering? oughtn't they to be discovering?
Perfect	V-ing perfect
oughtn't I to have discovered? oughtn't you to have discovered? oughtn't she to have discovered? oughtn't we to have discovered? oughtn't you to have discovered? oughtn't they to have discovered?	oughtn't I to have been discovering? oughtn't you to have been discovering? oughtn't she to have been discovering? oughtn't we to have been discovering? oughtn't you to have been discovering? oughtn't they to have been discovering?