English verb conjugation
SHALL WEAKEN

Regular verb: weaken - weakened - weakened

Affirmation

Simple form	V-ing form
I shall weaken you shall weaken she shall weaken we shall weaken you shall weaken they shall weaken	I shall be weakening you shall be weakening she shall be weakening we shall be weakening you shall be weakening they shall be weakening
Perfect	V-ing perfect
I shall have weakened you shall have weakened she shall have weakened we shall have weakened you shall have weakened they shall have weakened	I shall have been weakening you shall have been weakening she shall have been weakening we shall have been weakening you shall have been weakening they shall have been weakening

Negation

Simple form	V-ing form
I shall not weaken you shall not weaken she shall not weaken we shall not weaken you shall not weaken they shall not weaken	I shall not be weakening you shall not be weakening she shall not be weakening we shall not be weakening you shall not be weakening they shall not be weakening
Perfect	V-ing perfect
I shall not have weakened you shall not have weakened she shall not have weakened we shall not have weakened you shall not have weakened they shall not have weakened	I shall not have been weakening you shall not have been weakening she shall not have been weakening we shall not have been weakening you shall not have been weakening they shall not have been weakening

Interrogative form

Simple form	V-ing form
shall I weaken? shall you weaken? shall she weaken? shall we weaken? shall you weaken? shall they weaken?	shall I be weakening? shall you be weakening? shall she be weakening? shall we be weakening? shall you be weakening? shall they be weakening?
Perfect	V-ing perfect
shall I have weakened? shall you have weakened? shall she have weakened? shall we have weakened? shall you have weakened? shall they have weakened?	shall I have been weakening? shall you have been weakening? shall she have been weakening? shall we have been weakening? shall you have been weakening? shall they have been weakening?

Interro-negative form

Simple form	V-ing form
shall I not weaken? shall you not weaken? shall she not weaken? shall we not weaken? shall you not weaken? shall they not weaken?	shall I not be weakening? shall you not be weakening? shall she not be weakening? shall we not be weakening? shall you not be weakening? shall they not be weakening?
Perfect	V-ing perfect
shall I not have weakened? shall you not have weakened? shall she not have weakened? shall we not have weakened? shall you not have weakened? shall they not have weakened?	shall I not have been weakening? shall you not have been weakening? shall she not have been weakening? shall we not have been weakening? shall you not have been weakening? shall they not have been weakening?