English verb conjugation
OUGHT TO SHEAF

Regular verb: sheaf - sheafed - sheafed

Affirmation

Simple form	V-ing form
I ought to sheaf you ought to sheaf she ought to sheaf we ought to sheaf you ought to sheaf they ought to sheaf	I ought to be sheafing you ought to be sheafing she ought to be sheafing we ought to be sheafing you ought to be sheafing they ought to be sheafing
Perfect	V-ing perfect
I ought to have sheafed you ought to have sheafed she ought to have sheafed we ought to have sheafed you ought to have sheafed they ought to have sheafed	I ought to have been sheafing you ought to have been sheafing she ought to have been sheafing we ought to have been sheafing you ought to have been sheafing they ought to have been sheafing

Negation

Simple form	V-ing form
I oughtn't to sheaf you oughtn't to sheaf she oughtn't to sheaf we oughtn't to sheaf you oughtn't to sheaf they oughtn't to sheaf	I oughtn't to be sheafing you oughtn't to be sheafing she oughtn't to be sheafing we oughtn't to be sheafing you oughtn't to be sheafing they oughtn't to be sheafing
Perfect	V-ing perfect
I oughtn't to have sheafed you oughtn't to have sheafed she oughtn't to have sheafed we oughtn't to have sheafed you oughtn't to have sheafed they oughtn't to have sheafed	I oughtn't to have been sheafing you oughtn't to have been sheafing she oughtn't to have been sheafing we oughtn't to have been sheafing you oughtn't to have been sheafing they oughtn't to have been sheafing

Interrogative form

Simple form	V-ing form
ought to I sheaf? ought to you sheaf? ought to she sheaf? ought to we sheaf? ought to you sheaf? ought to they sheaf?	ought to I be sheafing? ought to you be sheafing? ought to she be sheafing? ought to we be sheafing? ought to you be sheafing? ought to they be sheafing?
Perfect	V-ing perfect
ought to I have sheafed? ought to you have sheafed? ought to she have sheafed? ought to we have sheafed? ought to you have sheafed? ought to they have sheafed?	ought to I have been sheafing? ought to you have been sheafing? ought to she have been sheafing? ought to we have been sheafing? ought to you have been sheafing? ought to they have been sheafing?

Interro-negative form

Simple form	V-ing form
oughtn't I to sheaf? oughtn't you to sheaf? oughtn't she to sheaf? oughtn't we to sheaf? oughtn't you to sheaf? oughtn't they to sheaf?	oughtn't I to be sheafing? oughtn't you to be sheafing? oughtn't she to be sheafing? oughtn't we to be sheafing? oughtn't you to be sheafing? oughtn't they to be sheafing?
Perfect	V-ing perfect
oughtn't I to have sheafed? oughtn't you to have sheafed? oughtn't she to have sheafed? oughtn't we to have sheafed? oughtn't you to have sheafed? oughtn't they to have sheafed?	oughtn't I to have been sheafing? oughtn't you to have been sheafing? oughtn't she to have been sheafing? oughtn't we to have been sheafing? oughtn't you to have been sheafing? oughtn't they to have been sheafing?