English verb conjugation
OUGHT TO ILLUSTRATE

Regular verb: illustrate - illustrated - illustrated

Affirmation

Simple form	V-ing form
I ought to illustrate you ought to illustrate he ought to illustrate we ought to illustrate you ought to illustrate they ought to illustrate	I ought to be illustrating you ought to be illustrating he ought to be illustrating we ought to be illustrating you ought to be illustrating they ought to be illustrating
Perfect	V-ing perfect
I ought to have illustrated you ought to have illustrated he ought to have illustrated we ought to have illustrated you ought to have illustrated they ought to have illustrated	I ought to have been illustrating you ought to have been illustrating he ought to have been illustrating we ought to have been illustrating you ought to have been illustrating they ought to have been illustrating

Negation

Simple form	V-ing form
I oughtn't to illustrate you oughtn't to illustrate he oughtn't to illustrate we oughtn't to illustrate you oughtn't to illustrate they oughtn't to illustrate	I oughtn't to be illustrating you oughtn't to be illustrating he oughtn't to be illustrating we oughtn't to be illustrating you oughtn't to be illustrating they oughtn't to be illustrating
Perfect	V-ing perfect
I oughtn't to have illustrated you oughtn't to have illustrated he oughtn't to have illustrated we oughtn't to have illustrated you oughtn't to have illustrated they oughtn't to have illustrated	I oughtn't to have been illustrating you oughtn't to have been illustrating he oughtn't to have been illustrating we oughtn't to have been illustrating you oughtn't to have been illustrating they oughtn't to have been illustrating

Interrogative form

Simple form	V-ing form
ought to I illustrate? ought to you illustrate? ought to he illustrate? ought to we illustrate? ought to you illustrate? ought to they illustrate?	ought to I be illustrating? ought to you be illustrating? ought to he be illustrating? ought to we be illustrating? ought to you be illustrating? ought to they be illustrating?
Perfect	V-ing perfect
ought to I have illustrated? ought to you have illustrated? ought to he have illustrated? ought to we have illustrated? ought to you have illustrated? ought to they have illustrated?	ought to I have been illustrating? ought to you have been illustrating? ought to he have been illustrating? ought to we have been illustrating? ought to you have been illustrating? ought to they have been illustrating?

Interro-negative form

Simple form	V-ing form
oughtn't I to illustrate? oughtn't you to illustrate? oughtn't he to illustrate? oughtn't we to illustrate? oughtn't you to illustrate? oughtn't they to illustrate?	oughtn't I to be illustrating? oughtn't you to be illustrating? oughtn't he to be illustrating? oughtn't we to be illustrating? oughtn't you to be illustrating? oughtn't they to be illustrating?
Perfect	V-ing perfect
oughtn't I to have illustrated? oughtn't you to have illustrated? oughtn't he to have illustrated? oughtn't we to have illustrated? oughtn't you to have illustrated? oughtn't they to have illustrated?	oughtn't I to have been illustrating? oughtn't you to have been illustrating? oughtn't he to have been illustrating? oughtn't we to have been illustrating? oughtn't you to have been illustrating? oughtn't they to have been illustrating?