English verb conjugation
OUGHT TO GRIEVE

Regular verb: grieve - grieved - grieved

Affirmation

Simple form	V-ing form
I ought to grieve you ought to grieve he ought to grieve we ought to grieve you ought to grieve they ought to grieve	I ought to be grieving you ought to be grieving he ought to be grieving we ought to be grieving you ought to be grieving they ought to be grieving
Perfect	V-ing perfect
I ought to have grieved you ought to have grieved he ought to have grieved we ought to have grieved you ought to have grieved they ought to have grieved	I ought to have been grieving you ought to have been grieving he ought to have been grieving we ought to have been grieving you ought to have been grieving they ought to have been grieving

Negation

Simple form	V-ing form
I oughtn't to grieve you oughtn't to grieve he oughtn't to grieve we oughtn't to grieve you oughtn't to grieve they oughtn't to grieve	I oughtn't to be grieving you oughtn't to be grieving he oughtn't to be grieving we oughtn't to be grieving you oughtn't to be grieving they oughtn't to be grieving
Perfect	V-ing perfect
I oughtn't to have grieved you oughtn't to have grieved he oughtn't to have grieved we oughtn't to have grieved you oughtn't to have grieved they oughtn't to have grieved	I oughtn't to have been grieving you oughtn't to have been grieving he oughtn't to have been grieving we oughtn't to have been grieving you oughtn't to have been grieving they oughtn't to have been grieving

Interrogative form

Simple form	V-ing form
ought to I grieve? ought to you grieve? ought to he grieve? ought to we grieve? ought to you grieve? ought to they grieve?	ought to I be grieving? ought to you be grieving? ought to he be grieving? ought to we be grieving? ought to you be grieving? ought to they be grieving?
Perfect	V-ing perfect
ought to I have grieved? ought to you have grieved? ought to he have grieved? ought to we have grieved? ought to you have grieved? ought to they have grieved?	ought to I have been grieving? ought to you have been grieving? ought to he have been grieving? ought to we have been grieving? ought to you have been grieving? ought to they have been grieving?

Interro-negative form

Simple form	V-ing form
oughtn't I to grieve? oughtn't you to grieve? oughtn't he to grieve? oughtn't we to grieve? oughtn't you to grieve? oughtn't they to grieve?	oughtn't I to be grieving? oughtn't you to be grieving? oughtn't he to be grieving? oughtn't we to be grieving? oughtn't you to be grieving? oughtn't they to be grieving?
Perfect	V-ing perfect
oughtn't I to have grieved? oughtn't you to have grieved? oughtn't he to have grieved? oughtn't we to have grieved? oughtn't you to have grieved? oughtn't they to have grieved?	oughtn't I to have been grieving? oughtn't you to have been grieving? oughtn't he to have been grieving? oughtn't we to have been grieving? oughtn't you to have been grieving? oughtn't they to have been grieving?