English verb conjugation
OUGHT TO CLACK

Regular verb: clack - clacked - clacked

Affirmation

Simple form	V-ing form
I ought to clack you ought to clack he ought to clack we ought to clack you ought to clack they ought to clack	I ought to be clacking you ought to be clacking he ought to be clacking we ought to be clacking you ought to be clacking they ought to be clacking
Perfect	V-ing perfect
I ought to have clacked you ought to have clacked he ought to have clacked we ought to have clacked you ought to have clacked they ought to have clacked	I ought to have been clacking you ought to have been clacking he ought to have been clacking we ought to have been clacking you ought to have been clacking they ought to have been clacking

Negation

Simple form	V-ing form
I oughtn't to clack you oughtn't to clack he oughtn't to clack we oughtn't to clack you oughtn't to clack they oughtn't to clack	I oughtn't to be clacking you oughtn't to be clacking he oughtn't to be clacking we oughtn't to be clacking you oughtn't to be clacking they oughtn't to be clacking
Perfect	V-ing perfect
I oughtn't to have clacked you oughtn't to have clacked he oughtn't to have clacked we oughtn't to have clacked you oughtn't to have clacked they oughtn't to have clacked	I oughtn't to have been clacking you oughtn't to have been clacking he oughtn't to have been clacking we oughtn't to have been clacking you oughtn't to have been clacking they oughtn't to have been clacking

Interrogative form

Simple form	V-ing form
ought to I clack? ought to you clack? ought to he clack? ought to we clack? ought to you clack? ought to they clack?	ought to I be clacking? ought to you be clacking? ought to he be clacking? ought to we be clacking? ought to you be clacking? ought to they be clacking?
Perfect	V-ing perfect
ought to I have clacked? ought to you have clacked? ought to he have clacked? ought to we have clacked? ought to you have clacked? ought to they have clacked?	ought to I have been clacking? ought to you have been clacking? ought to he have been clacking? ought to we have been clacking? ought to you have been clacking? ought to they have been clacking?

Interro-negative form

Simple form	V-ing form
oughtn't I to clack? oughtn't you to clack? oughtn't he to clack? oughtn't we to clack? oughtn't you to clack? oughtn't they to clack?	oughtn't I to be clacking? oughtn't you to be clacking? oughtn't he to be clacking? oughtn't we to be clacking? oughtn't you to be clacking? oughtn't they to be clacking?
Perfect	V-ing perfect
oughtn't I to have clacked? oughtn't you to have clacked? oughtn't he to have clacked? oughtn't we to have clacked? oughtn't you to have clacked? oughtn't they to have clacked?	oughtn't I to have been clacking? oughtn't you to have been clacking? oughtn't he to have been clacking? oughtn't we to have been clacking? oughtn't you to have been clacking? oughtn't they to have been clacking?