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