English verb conjugation
OUGHT TO PERSEVERE

Regular verb: persevere - persevered - persevered

Affirmation

Simple form	V-ing form
I ought to persevere you ought to persevere he ought to persevere we ought to persevere you ought to persevere they ought to persevere	I ought to be persevering you ought to be persevering he ought to be persevering we ought to be persevering you ought to be persevering they ought to be persevering
Perfect	V-ing perfect
I ought to have persevered you ought to have persevered he ought to have persevered we ought to have persevered you ought to have persevered they ought to have persevered	I ought to have been persevering you ought to have been persevering he ought to have been persevering we ought to have been persevering you ought to have been persevering they ought to have been persevering

Negation

Simple form	V-ing form
I oughtn't to persevere you oughtn't to persevere he oughtn't to persevere we oughtn't to persevere you oughtn't to persevere they oughtn't to persevere	I oughtn't to be persevering you oughtn't to be persevering he oughtn't to be persevering we oughtn't to be persevering you oughtn't to be persevering they oughtn't to be persevering
Perfect	V-ing perfect
I oughtn't to have persevered you oughtn't to have persevered he oughtn't to have persevered we oughtn't to have persevered you oughtn't to have persevered they oughtn't to have persevered	I oughtn't to have been persevering you oughtn't to have been persevering he oughtn't to have been persevering we oughtn't to have been persevering you oughtn't to have been persevering they oughtn't to have been persevering

Interrogative form

Simple form	V-ing form
ought to I persevere? ought to you persevere? ought to he persevere? ought to we persevere? ought to you persevere? ought to they persevere?	ought to I be persevering? ought to you be persevering? ought to he be persevering? ought to we be persevering? ought to you be persevering? ought to they be persevering?
Perfect	V-ing perfect
ought to I have persevered? ought to you have persevered? ought to he have persevered? ought to we have persevered? ought to you have persevered? ought to they have persevered?	ought to I have been persevering? ought to you have been persevering? ought to he have been persevering? ought to we have been persevering? ought to you have been persevering? ought to they have been persevering?

Interro-negative form

Simple form	V-ing form
oughtn't I to persevere? oughtn't you to persevere? oughtn't he to persevere? oughtn't we to persevere? oughtn't you to persevere? oughtn't they to persevere?	oughtn't I to be persevering? oughtn't you to be persevering? oughtn't he to be persevering? oughtn't we to be persevering? oughtn't you to be persevering? oughtn't they to be persevering?
Perfect	V-ing perfect
oughtn't I to have persevered? oughtn't you to have persevered? oughtn't he to have persevered? oughtn't we to have persevered? oughtn't you to have persevered? oughtn't they to have persevered?	oughtn't I to have been persevering? oughtn't you to have been persevering? oughtn't he to have been persevering? oughtn't we to have been persevering? oughtn't you to have been persevering? oughtn't they to have been persevering?