English verb conjugation
OUGHT TO LACK

Regular verb: lack - lacked - lacked

Affirmation

Simple form	V-ing form
I ought to lack you ought to lack she ought to lack we ought to lack you ought to lack they ought to lack	I ought to be lacking you ought to be lacking she ought to be lacking we ought to be lacking you ought to be lacking they ought to be lacking
Perfect	V-ing perfect
I ought to have lacked you ought to have lacked she ought to have lacked we ought to have lacked you ought to have lacked they ought to have lacked	I ought to have been lacking you ought to have been lacking she ought to have been lacking we ought to have been lacking you ought to have been lacking they ought to have been lacking

Negation

Simple form	V-ing form
I oughtn't to lack you oughtn't to lack she oughtn't to lack we oughtn't to lack you oughtn't to lack they oughtn't to lack	I oughtn't to be lacking you oughtn't to be lacking she oughtn't to be lacking we oughtn't to be lacking you oughtn't to be lacking they oughtn't to be lacking
Perfect	V-ing perfect
I oughtn't to have lacked you oughtn't to have lacked she oughtn't to have lacked we oughtn't to have lacked you oughtn't to have lacked they oughtn't to have lacked	I oughtn't to have been lacking you oughtn't to have been lacking she oughtn't to have been lacking we oughtn't to have been lacking you oughtn't to have been lacking they oughtn't to have been lacking

Interrogative form

Simple form	V-ing form
ought to I lack? ought to you lack? ought to she lack? ought to we lack? ought to you lack? ought to they lack?	ought to I be lacking? ought to you be lacking? ought to she be lacking? ought to we be lacking? ought to you be lacking? ought to they be lacking?
Perfect	V-ing perfect
ought to I have lacked? ought to you have lacked? ought to she have lacked? ought to we have lacked? ought to you have lacked? ought to they have lacked?	ought to I have been lacking? ought to you have been lacking? ought to she have been lacking? ought to we have been lacking? ought to you have been lacking? ought to they have been lacking?

Interro-negative form

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