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