English verb conjugation
SHALL LACK

Regular verb: lack - lacked - lacked

Affirmation

Simple form	V-ing form
I'll lack you'll lack he'll lack we'll lack you'll lack they'll lack	I'll be lacking you'll be lacking he'll be lacking we'll be lacking you'll be lacking they'll be lacking
Perfect	V-ing perfect
I'll have lacked you'll have lacked he'll have lacked we'll have lacked you'll have lacked they'll have lacked	I'll have been lacking you'll have been lacking he'll have been lacking we'll have been lacking you'll have been lacking they'll have been lacking

Negation

Simple form	V-ing form
I shan't lack you shan't lack he shan't lack we shan't lack you shan't lack they shan't lack	I shan't be lacking you shan't be lacking he shan't be lacking we shan't be lacking you shan't be lacking they shan't be lacking
Perfect	V-ing perfect
I shan't have lacked you shan't have lacked he shan't have lacked we shan't have lacked you shan't have lacked they shan't have lacked	I shan't have been lacking you shan't have been lacking he shan't have been lacking we shan't have been lacking you shan't have been lacking they shan't have been lacking

Interrogative form

Simple form	V-ing form
shall I lack? shall you lack? shall he lack? shall we lack? shall you lack? shall they lack?	shall I be lacking? shall you be lacking? shall he be lacking? shall we be lacking? shall you be lacking? shall they be lacking?
Perfect	V-ing perfect
shall I have lacked? shall you have lacked? shall he have lacked? shall we have lacked? shall you have lacked? shall they have lacked?	shall I have been lacking? shall you have been lacking? shall he have been lacking? shall we have been lacking? shall you have been lacking? shall they have been lacking?

Interro-negative form

Simple form	V-ing form
shan't I lack? shan't you lack? shan't he lack? shan't we lack? shan't you lack? shan't they lack?	shan't I be lacking? shan't you be lacking? shan't he be lacking? shan't we be lacking? shan't you be lacking? shan't they be lacking?
Perfect	V-ing perfect
shan't I have lacked? shan't you have lacked? shan't he have lacked? shan't we have lacked? shan't you have lacked? shan't they have lacked?	shan't I have been lacking? shan't you have been lacking? shan't he have been lacking? shan't we have been lacking? shan't you have been lacking? shan't they have been lacking?