English verb conjugation
OUGHT TO CLERK

Regular verb: clerk - clerked - clerked

Affirmation

Simple form	V-ing form
I ought to clerk you ought to clerk she ought to clerk we ought to clerk you ought to clerk they ought to clerk	I ought to be clerking you ought to be clerking she ought to be clerking we ought to be clerking you ought to be clerking they ought to be clerking
Perfect	V-ing perfect
I ought to have clerked you ought to have clerked she ought to have clerked we ought to have clerked you ought to have clerked they ought to have clerked	I ought to have been clerking you ought to have been clerking she ought to have been clerking we ought to have been clerking you ought to have been clerking they ought to have been clerking

Negation

Simple form	V-ing form
I oughtn't to clerk you oughtn't to clerk she oughtn't to clerk we oughtn't to clerk you oughtn't to clerk they oughtn't to clerk	I oughtn't to be clerking you oughtn't to be clerking she oughtn't to be clerking we oughtn't to be clerking you oughtn't to be clerking they oughtn't to be clerking
Perfect	V-ing perfect
I oughtn't to have clerked you oughtn't to have clerked she oughtn't to have clerked we oughtn't to have clerked you oughtn't to have clerked they oughtn't to have clerked	I oughtn't to have been clerking you oughtn't to have been clerking she oughtn't to have been clerking we oughtn't to have been clerking you oughtn't to have been clerking they oughtn't to have been clerking

Interrogative form

Simple form	V-ing form
ought to I clerk? ought to you clerk? ought to she clerk? ought to we clerk? ought to you clerk? ought to they clerk?	ought to I be clerking? ought to you be clerking? ought to she be clerking? ought to we be clerking? ought to you be clerking? ought to they be clerking?
Perfect	V-ing perfect
ought to I have clerked? ought to you have clerked? ought to she have clerked? ought to we have clerked? ought to you have clerked? ought to they have clerked?	ought to I have been clerking? ought to you have been clerking? ought to she have been clerking? ought to we have been clerking? ought to you have been clerking? ought to they have been clerking?

Interro-negative form

Simple form	V-ing form
oughtn't I to clerk? oughtn't you to clerk? oughtn't she to clerk? oughtn't we to clerk? oughtn't you to clerk? oughtn't they to clerk?	oughtn't I to be clerking? oughtn't you to be clerking? oughtn't she to be clerking? oughtn't we to be clerking? oughtn't you to be clerking? oughtn't they to be clerking?
Perfect	V-ing perfect
oughtn't I to have clerked? oughtn't you to have clerked? oughtn't she to have clerked? oughtn't we to have clerked? oughtn't you to have clerked? oughtn't they to have clerked?	oughtn't I to have been clerking? oughtn't you to have been clerking? oughtn't she to have been clerking? oughtn't we to have been clerking? oughtn't you to have been clerking? oughtn't they to have been clerking?