English verb conjugation
OUGHT TO DEMONSTRATE

Regular verb: demonstrate - demonstrated - demonstrated

Affirmation

Simple form	V-ing form
I ought to demonstrate you ought to demonstrate she ought to demonstrate we ought to demonstrate you ought to demonstrate they ought to demonstrate	I ought to be demonstrating you ought to be demonstrating she ought to be demonstrating we ought to be demonstrating you ought to be demonstrating they ought to be demonstrating
Perfect	V-ing perfect
I ought to have demonstrated you ought to have demonstrated she ought to have demonstrated we ought to have demonstrated you ought to have demonstrated they ought to have demonstrated	I ought to have been demonstrating you ought to have been demonstrating she ought to have been demonstrating we ought to have been demonstrating you ought to have been demonstrating they ought to have been demonstrating

Negation

Simple form	V-ing form
I oughtn't to demonstrate you oughtn't to demonstrate she oughtn't to demonstrate we oughtn't to demonstrate you oughtn't to demonstrate they oughtn't to demonstrate	I oughtn't to be demonstrating you oughtn't to be demonstrating she oughtn't to be demonstrating we oughtn't to be demonstrating you oughtn't to be demonstrating they oughtn't to be demonstrating
Perfect	V-ing perfect
I oughtn't to have demonstrated you oughtn't to have demonstrated she oughtn't to have demonstrated we oughtn't to have demonstrated you oughtn't to have demonstrated they oughtn't to have demonstrated	I oughtn't to have been demonstrating you oughtn't to have been demonstrating she oughtn't to have been demonstrating we oughtn't to have been demonstrating you oughtn't to have been demonstrating they oughtn't to have been demonstrating

Interrogative form

Simple form	V-ing form
ought to I demonstrate? ought to you demonstrate? ought to she demonstrate? ought to we demonstrate? ought to you demonstrate? ought to they demonstrate?	ought to I be demonstrating? ought to you be demonstrating? ought to she be demonstrating? ought to we be demonstrating? ought to you be demonstrating? ought to they be demonstrating?
Perfect	V-ing perfect
ought to I have demonstrated? ought to you have demonstrated? ought to she have demonstrated? ought to we have demonstrated? ought to you have demonstrated? ought to they have demonstrated?	ought to I have been demonstrating? ought to you have been demonstrating? ought to she have been demonstrating? ought to we have been demonstrating? ought to you have been demonstrating? ought to they have been demonstrating?

Interro-negative form

Simple form	V-ing form
oughtn't I to demonstrate? oughtn't you to demonstrate? oughtn't she to demonstrate? oughtn't we to demonstrate? oughtn't you to demonstrate? oughtn't they to demonstrate?	oughtn't I to be demonstrating? oughtn't you to be demonstrating? oughtn't she to be demonstrating? oughtn't we to be demonstrating? oughtn't you to be demonstrating? oughtn't they to be demonstrating?
Perfect	V-ing perfect
oughtn't I to have demonstrated? oughtn't you to have demonstrated? oughtn't she to have demonstrated? oughtn't we to have demonstrated? oughtn't you to have demonstrated? oughtn't they to have demonstrated?	oughtn't I to have been demonstrating? oughtn't you to have been demonstrating? oughtn't she to have been demonstrating? oughtn't we to have been demonstrating? oughtn't you to have been demonstrating? oughtn't they to have been demonstrating?