English verb conjugation
SHALL THUMB

Regular verb: thumb - thumbed - thumbed

Affirmation

Simple form	V-ing form
I shall thumb you shall thumb she shall thumb we shall thumb you shall thumb they shall thumb	I shall be thumbing you shall be thumbing she shall be thumbing we shall be thumbing you shall be thumbing they shall be thumbing
Perfect	V-ing perfect
I shall have thumbed you shall have thumbed she shall have thumbed we shall have thumbed you shall have thumbed they shall have thumbed	I shall have been thumbing you shall have been thumbing she shall have been thumbing we shall have been thumbing you shall have been thumbing they shall have been thumbing

Negation

Simple form	V-ing form
I shall not thumb you shall not thumb she shall not thumb we shall not thumb you shall not thumb they shall not thumb	I shall not be thumbing you shall not be thumbing she shall not be thumbing we shall not be thumbing you shall not be thumbing they shall not be thumbing
Perfect	V-ing perfect
I shall not have thumbed you shall not have thumbed she shall not have thumbed we shall not have thumbed you shall not have thumbed they shall not have thumbed	I shall not have been thumbing you shall not have been thumbing she shall not have been thumbing we shall not have been thumbing you shall not have been thumbing they shall not have been thumbing

Interrogative form

Simple form	V-ing form
shall I thumb? shall you thumb? shall she thumb? shall we thumb? shall you thumb? shall they thumb?	shall I be thumbing? shall you be thumbing? shall she be thumbing? shall we be thumbing? shall you be thumbing? shall they be thumbing?
Perfect	V-ing perfect
shall I have thumbed? shall you have thumbed? shall she have thumbed? shall we have thumbed? shall you have thumbed? shall they have thumbed?	shall I have been thumbing? shall you have been thumbing? shall she have been thumbing? shall we have been thumbing? shall you have been thumbing? shall they have been thumbing?

Interro-negative form

Simple form	V-ing form
shall I not thumb? shall you not thumb? shall she not thumb? shall we not thumb? shall you not thumb? shall they not thumb?	shall I not be thumbing? shall you not be thumbing? shall she not be thumbing? shall we not be thumbing? shall you not be thumbing? shall they not be thumbing?
Perfect	V-ing perfect
shall I not have thumbed? shall you not have thumbed? shall she not have thumbed? shall we not have thumbed? shall you not have thumbed? shall they not have thumbed?	shall I not have been thumbing? shall you not have been thumbing? shall she not have been thumbing? shall we not have been thumbing? shall you not have been thumbing? shall they not have been thumbing?