English verb conjugation
OUGHT TO PREINSTRUCT

Regular verb: preinstruct - preinstructed - preinstructed

Affirmation

Simple form	V-ing form
I ought to preinstruct you ought to preinstruct she ought to preinstruct we ought to preinstruct you ought to preinstruct they ought to preinstruct	I ought to be preinstructing you ought to be preinstructing she ought to be preinstructing we ought to be preinstructing you ought to be preinstructing they ought to be preinstructing
Perfect	V-ing perfect
I ought to have preinstructed you ought to have preinstructed she ought to have preinstructed we ought to have preinstructed you ought to have preinstructed they ought to have preinstructed	I ought to have been preinstructing you ought to have been preinstructing she ought to have been preinstructing we ought to have been preinstructing you ought to have been preinstructing they ought to have been preinstructing

Negation

Simple form	V-ing form
I oughtn't to preinstruct you oughtn't to preinstruct she oughtn't to preinstruct we oughtn't to preinstruct you oughtn't to preinstruct they oughtn't to preinstruct	I oughtn't to be preinstructing you oughtn't to be preinstructing she oughtn't to be preinstructing we oughtn't to be preinstructing you oughtn't to be preinstructing they oughtn't to be preinstructing
Perfect	V-ing perfect
I oughtn't to have preinstructed you oughtn't to have preinstructed she oughtn't to have preinstructed we oughtn't to have preinstructed you oughtn't to have preinstructed they oughtn't to have preinstructed	I oughtn't to have been preinstructing you oughtn't to have been preinstructing she oughtn't to have been preinstructing we oughtn't to have been preinstructing you oughtn't to have been preinstructing they oughtn't to have been preinstructing

Interrogative form

Simple form	V-ing form
ought to I preinstruct? ought to you preinstruct? ought to she preinstruct? ought to we preinstruct? ought to you preinstruct? ought to they preinstruct?	ought to I be preinstructing? ought to you be preinstructing? ought to she be preinstructing? ought to we be preinstructing? ought to you be preinstructing? ought to they be preinstructing?
Perfect	V-ing perfect
ought to I have preinstructed? ought to you have preinstructed? ought to she have preinstructed? ought to we have preinstructed? ought to you have preinstructed? ought to they have preinstructed?	ought to I have been preinstructing? ought to you have been preinstructing? ought to she have been preinstructing? ought to we have been preinstructing? ought to you have been preinstructing? ought to they have been preinstructing?

Interro-negative form

Simple form	V-ing form
oughtn't I to preinstruct? oughtn't you to preinstruct? oughtn't she to preinstruct? oughtn't we to preinstruct? oughtn't you to preinstruct? oughtn't they to preinstruct?	oughtn't I to be preinstructing? oughtn't you to be preinstructing? oughtn't she to be preinstructing? oughtn't we to be preinstructing? oughtn't you to be preinstructing? oughtn't they to be preinstructing?
Perfect	V-ing perfect
oughtn't I to have preinstructed? oughtn't you to have preinstructed? oughtn't she to have preinstructed? oughtn't we to have preinstructed? oughtn't you to have preinstructed? oughtn't they to have preinstructed?	oughtn't I to have been preinstructing? oughtn't you to have been preinstructing? oughtn't she to have been preinstructing? oughtn't we to have been preinstructing? oughtn't you to have been preinstructing? oughtn't they to have been preinstructing?