English verb conjugation
OUGHT TO PREWORK

Regular verb: prework - preworked - preworked

Affirmation

Simple form	V-ing form
I ought to prework you ought to prework he ought to prework we ought to prework you ought to prework they ought to prework	I ought to be preworking you ought to be preworking he ought to be preworking we ought to be preworking you ought to be preworking they ought to be preworking
Perfect	V-ing perfect
I ought to have preworked you ought to have preworked he ought to have preworked we ought to have preworked you ought to have preworked they ought to have preworked	I ought to have been preworking you ought to have been preworking he ought to have been preworking we ought to have been preworking you ought to have been preworking they ought to have been preworking

Negation

Simple form	V-ing form
I oughtn't to prework you oughtn't to prework he oughtn't to prework we oughtn't to prework you oughtn't to prework they oughtn't to prework	I oughtn't to be preworking you oughtn't to be preworking he oughtn't to be preworking we oughtn't to be preworking you oughtn't to be preworking they oughtn't to be preworking
Perfect	V-ing perfect
I oughtn't to have preworked you oughtn't to have preworked he oughtn't to have preworked we oughtn't to have preworked you oughtn't to have preworked they oughtn't to have preworked	I oughtn't to have been preworking you oughtn't to have been preworking he oughtn't to have been preworking we oughtn't to have been preworking you oughtn't to have been preworking they oughtn't to have been preworking

Interrogative form

Simple form	V-ing form
ought to I prework? ought to you prework? ought to he prework? ought to we prework? ought to you prework? ought to they prework?	ought to I be preworking? ought to you be preworking? ought to he be preworking? ought to we be preworking? ought to you be preworking? ought to they be preworking?
Perfect	V-ing perfect
ought to I have preworked? ought to you have preworked? ought to he have preworked? ought to we have preworked? ought to you have preworked? ought to they have preworked?	ought to I have been preworking? ought to you have been preworking? ought to he have been preworking? ought to we have been preworking? ought to you have been preworking? ought to they have been preworking?

Interro-negative form

Simple form	V-ing form
oughtn't I to prework? oughtn't you to prework? oughtn't he to prework? oughtn't we to prework? oughtn't you to prework? oughtn't they to prework?	oughtn't I to be preworking? oughtn't you to be preworking? oughtn't he to be preworking? oughtn't we to be preworking? oughtn't you to be preworking? oughtn't they to be preworking?
Perfect	V-ing perfect
oughtn't I to have preworked? oughtn't you to have preworked? oughtn't he to have preworked? oughtn't we to have preworked? oughtn't you to have preworked? oughtn't they to have preworked?	oughtn't I to have been preworking? oughtn't you to have been preworking? oughtn't he to have been preworking? oughtn't we to have been preworking? oughtn't you to have been preworking? oughtn't they to have been preworking?