English verb conjugation
OUGHT TO ENDEAVOR

Regular verb: endeavor - endeavored - endeavored

Affirmation

Simple form	V-ing form
I ought to endeavor you ought to endeavor she ought to endeavor we ought to endeavor you ought to endeavor they ought to endeavor	I ought to be endeavoring you ought to be endeavoring she ought to be endeavoring we ought to be endeavoring you ought to be endeavoring they ought to be endeavoring
Perfect	V-ing perfect
I ought to have endeavored you ought to have endeavored she ought to have endeavored we ought to have endeavored you ought to have endeavored they ought to have endeavored	I ought to have been endeavoring you ought to have been endeavoring she ought to have been endeavoring we ought to have been endeavoring you ought to have been endeavoring they ought to have been endeavoring

Negation

Simple form	V-ing form
I oughtn't to endeavor you oughtn't to endeavor she oughtn't to endeavor we oughtn't to endeavor you oughtn't to endeavor they oughtn't to endeavor	I oughtn't to be endeavoring you oughtn't to be endeavoring she oughtn't to be endeavoring we oughtn't to be endeavoring you oughtn't to be endeavoring they oughtn't to be endeavoring
Perfect	V-ing perfect
I oughtn't to have endeavored you oughtn't to have endeavored she oughtn't to have endeavored we oughtn't to have endeavored you oughtn't to have endeavored they oughtn't to have endeavored	I oughtn't to have been endeavoring you oughtn't to have been endeavoring she oughtn't to have been endeavoring we oughtn't to have been endeavoring you oughtn't to have been endeavoring they oughtn't to have been endeavoring

Interrogative form

Simple form	V-ing form
ought to I endeavor? ought to you endeavor? ought to she endeavor? ought to we endeavor? ought to you endeavor? ought to they endeavor?	ought to I be endeavoring? ought to you be endeavoring? ought to she be endeavoring? ought to we be endeavoring? ought to you be endeavoring? ought to they be endeavoring?
Perfect	V-ing perfect
ought to I have endeavored? ought to you have endeavored? ought to she have endeavored? ought to we have endeavored? ought to you have endeavored? ought to they have endeavored?	ought to I have been endeavoring? ought to you have been endeavoring? ought to she have been endeavoring? ought to we have been endeavoring? ought to you have been endeavoring? ought to they have been endeavoring?

Interro-negative form

Simple form	V-ing form
oughtn't I to endeavor? oughtn't you to endeavor? oughtn't she to endeavor? oughtn't we to endeavor? oughtn't you to endeavor? oughtn't they to endeavor?	oughtn't I to be endeavoring? oughtn't you to be endeavoring? oughtn't she to be endeavoring? oughtn't we to be endeavoring? oughtn't you to be endeavoring? oughtn't they to be endeavoring?
Perfect	V-ing perfect
oughtn't I to have endeavored? oughtn't you to have endeavored? oughtn't she to have endeavored? oughtn't we to have endeavored? oughtn't you to have endeavored? oughtn't they to have endeavored?	oughtn't I to have been endeavoring? oughtn't you to have been endeavoring? oughtn't she to have been endeavoring? oughtn't we to have been endeavoring? oughtn't you to have been endeavoring? oughtn't they to have been endeavoring?