English verb conjugation
OUGHT TO GUESS

Regular verb: guess - guessed - guessed

Affirmation

Simple form	V-ing form
I ought to guess you ought to guess she ought to guess we ought to guess you ought to guess they ought to guess	I ought to be guessing you ought to be guessing she ought to be guessing we ought to be guessing you ought to be guessing they ought to be guessing
Perfect	V-ing perfect
I ought to have guessed you ought to have guessed she ought to have guessed we ought to have guessed you ought to have guessed they ought to have guessed	I ought to have been guessing you ought to have been guessing she ought to have been guessing we ought to have been guessing you ought to have been guessing they ought to have been guessing

Negation

Simple form	V-ing form
I oughtn't to guess you oughtn't to guess she oughtn't to guess we oughtn't to guess you oughtn't to guess they oughtn't to guess	I oughtn't to be guessing you oughtn't to be guessing she oughtn't to be guessing we oughtn't to be guessing you oughtn't to be guessing they oughtn't to be guessing
Perfect	V-ing perfect
I oughtn't to have guessed you oughtn't to have guessed she oughtn't to have guessed we oughtn't to have guessed you oughtn't to have guessed they oughtn't to have guessed	I oughtn't to have been guessing you oughtn't to have been guessing she oughtn't to have been guessing we oughtn't to have been guessing you oughtn't to have been guessing they oughtn't to have been guessing

Interrogative form

Simple form	V-ing form
ought to I guess? ought to you guess? ought to she guess? ought to we guess? ought to you guess? ought to they guess?	ought to I be guessing? ought to you be guessing? ought to she be guessing? ought to we be guessing? ought to you be guessing? ought to they be guessing?
Perfect	V-ing perfect
ought to I have guessed? ought to you have guessed? ought to she have guessed? ought to we have guessed? ought to you have guessed? ought to they have guessed?	ought to I have been guessing? ought to you have been guessing? ought to she have been guessing? ought to we have been guessing? ought to you have been guessing? ought to they have been guessing?

Interro-negative form

Simple form	V-ing form
oughtn't I to guess? oughtn't you to guess? oughtn't she to guess? oughtn't we to guess? oughtn't you to guess? oughtn't they to guess?	oughtn't I to be guessing? oughtn't you to be guessing? oughtn't she to be guessing? oughtn't we to be guessing? oughtn't you to be guessing? oughtn't they to be guessing?
Perfect	V-ing perfect
oughtn't I to have guessed? oughtn't you to have guessed? oughtn't she to have guessed? oughtn't we to have guessed? oughtn't you to have guessed? oughtn't they to have guessed?	oughtn't I to have been guessing? oughtn't you to have been guessing? oughtn't she to have been guessing? oughtn't we to have been guessing? oughtn't you to have been guessing? oughtn't they to have been guessing?