I ought to dilute you ought to dilute he ought to dilute we ought to dilute you ought to dilute they ought to dilute
V-ing form
I ought to be diluting you ought to be diluting he ought to be diluting we ought to be diluting you ought to be diluting they ought to be diluting
Perfect
I ought to have diluted you ought to have diluted he ought to have diluted we ought to have diluted you ought to have diluted they ought to have diluted
V-ing perfect
I ought to have been diluting you ought to have been diluting he ought to have been diluting we ought to have been diluting you ought to have been diluting they ought to have been diluting
Negation
Simple form
I oughtn't to dilute you oughtn't to dilute he oughtn't to dilute we oughtn't to dilute you oughtn't to dilute they oughtn't to dilute
V-ing form
I oughtn't to be diluting you oughtn't to be diluting he oughtn't to be diluting we oughtn't to be diluting you oughtn't to be diluting they oughtn't to be diluting
Perfect
I oughtn't to have diluted you oughtn't to have diluted he oughtn't to have diluted we oughtn't to have diluted you oughtn't to have diluted they oughtn't to have diluted
V-ing perfect
I oughtn't to have been diluting you oughtn't to have been diluting he oughtn't to have been diluting we oughtn't to have been diluting you oughtn't to have been diluting they oughtn't to have been diluting
Interrogative form
Simple form
ought to I dilute? ought to you dilute? ought to he dilute? ought to we dilute? ought to you dilute? ought to they dilute?
V-ing form
ought to I be diluting? ought to you be diluting? ought to he be diluting? ought to we be diluting? ought to you be diluting? ought to they be diluting?
Perfect
ought to I have diluted? ought to you have diluted? ought to he have diluted? ought to we have diluted? ought to you have diluted? ought to they have diluted?
V-ing perfect
ought to I have been diluting? ought to you have been diluting? ought to he have been diluting? ought to we have been diluting? ought to you have been diluting? ought to they have been diluting?
Interro-negative form
Simple form
oughtn't I to dilute? oughtn't you to dilute? oughtn't he to dilute? oughtn't we to dilute? oughtn't you to dilute? oughtn't they to dilute?
V-ing form
oughtn't I to be diluting? oughtn't you to be diluting? oughtn't he to be diluting? oughtn't we to be diluting? oughtn't you to be diluting? oughtn't they to be diluting?
Perfect
oughtn't I to have diluted? oughtn't you to have diluted? oughtn't he to have diluted? oughtn't we to have diluted? oughtn't you to have diluted? oughtn't they to have diluted?
V-ing perfect
oughtn't I to have been diluting? oughtn't you to have been diluting? oughtn't he to have been diluting? oughtn't we to have been diluting? oughtn't you to have been diluting? oughtn't they to have been diluting?