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