English verb conjugation
OUGHT TO SIUM

Regular verb: sium - siumed - siumed

Affirmation

Simple form	V-ing form
I ought to sium you ought to sium he ought to sium we ought to sium you ought to sium they ought to sium	I ought to be siuming you ought to be siuming he ought to be siuming we ought to be siuming you ought to be siuming they ought to be siuming
Perfect	V-ing perfect
I ought to have siumed you ought to have siumed he ought to have siumed we ought to have siumed you ought to have siumed they ought to have siumed	I ought to have been siuming you ought to have been siuming he ought to have been siuming we ought to have been siuming you ought to have been siuming they ought to have been siuming

Negation

Simple form	V-ing form
I oughtn't to sium you oughtn't to sium he oughtn't to sium we oughtn't to sium you oughtn't to sium they oughtn't to sium	I oughtn't to be siuming you oughtn't to be siuming he oughtn't to be siuming we oughtn't to be siuming you oughtn't to be siuming they oughtn't to be siuming
Perfect	V-ing perfect
I oughtn't to have siumed you oughtn't to have siumed he oughtn't to have siumed we oughtn't to have siumed you oughtn't to have siumed they oughtn't to have siumed	I oughtn't to have been siuming you oughtn't to have been siuming he oughtn't to have been siuming we oughtn't to have been siuming you oughtn't to have been siuming they oughtn't to have been siuming

Interrogative form

Simple form	V-ing form
ought to I sium? ought to you sium? ought to he sium? ought to we sium? ought to you sium? ought to they sium?	ought to I be siuming? ought to you be siuming? ought to he be siuming? ought to we be siuming? ought to you be siuming? ought to they be siuming?
Perfect	V-ing perfect
ought to I have siumed? ought to you have siumed? ought to he have siumed? ought to we have siumed? ought to you have siumed? ought to they have siumed?	ought to I have been siuming? ought to you have been siuming? ought to he have been siuming? ought to we have been siuming? ought to you have been siuming? ought to they have been siuming?

Interro-negative form

Simple form	V-ing form
oughtn't I to sium? oughtn't you to sium? oughtn't he to sium? oughtn't we to sium? oughtn't you to sium? oughtn't they to sium?	oughtn't I to be siuming? oughtn't you to be siuming? oughtn't he to be siuming? oughtn't we to be siuming? oughtn't you to be siuming? oughtn't they to be siuming?
Perfect	V-ing perfect
oughtn't I to have siumed? oughtn't you to have siumed? oughtn't he to have siumed? oughtn't we to have siumed? oughtn't you to have siumed? oughtn't they to have siumed?	oughtn't I to have been siuming? oughtn't you to have been siuming? oughtn't he to have been siuming? oughtn't we to have been siuming? oughtn't you to have been siuming? oughtn't they to have been siuming?