English verb conjugation
OUGHT TO THUMB

Regular verb: thumb - thumbed - thumbed

Affirmation

Simple form	V-ing form
I ought to thumb you ought to thumb he ought to thumb we ought to thumb you ought to thumb they ought to thumb	I ought to be thumbing you ought to be thumbing he ought to be thumbing we ought to be thumbing you ought to be thumbing they ought to be thumbing
Perfect	V-ing perfect
I ought to have thumbed you ought to have thumbed he ought to have thumbed we ought to have thumbed you ought to have thumbed they ought to have thumbed	I ought to have been thumbing you ought to have been thumbing he ought to have been thumbing we ought to have been thumbing you ought to have been thumbing they ought to have been thumbing

Negation

Simple form	V-ing form
I oughtn't to thumb you oughtn't to thumb he oughtn't to thumb we oughtn't to thumb you oughtn't to thumb they oughtn't to thumb	I oughtn't to be thumbing you oughtn't to be thumbing he oughtn't to be thumbing we oughtn't to be thumbing you oughtn't to be thumbing they oughtn't to be thumbing
Perfect	V-ing perfect
I oughtn't to have thumbed you oughtn't to have thumbed he oughtn't to have thumbed we oughtn't to have thumbed you oughtn't to have thumbed they oughtn't to have thumbed	I oughtn't to have been thumbing you oughtn't to have been thumbing he oughtn't to have been thumbing we oughtn't to have been thumbing you oughtn't to have been thumbing they oughtn't to have been thumbing

Interrogative form

Simple form	V-ing form
ought to I thumb? ought to you thumb? ought to he thumb? ought to we thumb? ought to you thumb? ought to they thumb?	ought to I be thumbing? ought to you be thumbing? ought to he be thumbing? ought to we be thumbing? ought to you be thumbing? ought to they be thumbing?
Perfect	V-ing perfect
ought to I have thumbed? ought to you have thumbed? ought to he have thumbed? ought to we have thumbed? ought to you have thumbed? ought to they have thumbed?	ought to I have been thumbing? ought to you have been thumbing? ought to he have been thumbing? ought to we have been thumbing? ought to you have been thumbing? ought to they have been thumbing?

Interro-negative form

Simple form	V-ing form
oughtn't I to thumb? oughtn't you to thumb? oughtn't he to thumb? oughtn't we to thumb? oughtn't you to thumb? oughtn't they to thumb?	oughtn't I to be thumbing? oughtn't you to be thumbing? oughtn't he to be thumbing? oughtn't we to be thumbing? oughtn't you to be thumbing? oughtn't they to be thumbing?
Perfect	V-ing perfect
oughtn't I to have thumbed? oughtn't you to have thumbed? oughtn't he to have thumbed? oughtn't we to have thumbed? oughtn't you to have thumbed? oughtn't they to have thumbed?	oughtn't I to have been thumbing? oughtn't you to have been thumbing? oughtn't he to have been thumbing? oughtn't we to have been thumbing? oughtn't you to have been thumbing? oughtn't they to have been thumbing?