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