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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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?