I ought to obstruct you ought to obstruct he ought to obstruct we ought to obstruct you ought to obstruct they ought to obstruct
V-ing form
I ought to be obstructing you ought to be obstructing he ought to be obstructing we ought to be obstructing you ought to be obstructing they ought to be obstructing
Perfect
I ought to have obstructed you ought to have obstructed he ought to have obstructed we ought to have obstructed you ought to have obstructed they ought to have obstructed
V-ing perfect
I ought to have been obstructing you ought to have been obstructing he ought to have been obstructing we ought to have been obstructing you ought to have been obstructing they ought to have been obstructing
Negation
Simple form
I oughtn't to obstruct you oughtn't to obstruct he oughtn't to obstruct we oughtn't to obstruct you oughtn't to obstruct they oughtn't to obstruct
V-ing form
I oughtn't to be obstructing you oughtn't to be obstructing he oughtn't to be obstructing we oughtn't to be obstructing you oughtn't to be obstructing they oughtn't to be obstructing
Perfect
I oughtn't to have obstructed you oughtn't to have obstructed he oughtn't to have obstructed we oughtn't to have obstructed you oughtn't to have obstructed they oughtn't to have obstructed
V-ing perfect
I oughtn't to have been obstructing you oughtn't to have been obstructing he oughtn't to have been obstructing we oughtn't to have been obstructing you oughtn't to have been obstructing they oughtn't to have been obstructing
Interrogative form
Simple form
ought to I obstruct? ought to you obstruct? ought to he obstruct? ought to we obstruct? ought to you obstruct? ought to they obstruct?
V-ing form
ought to I be obstructing? ought to you be obstructing? ought to he be obstructing? ought to we be obstructing? ought to you be obstructing? ought to they be obstructing?
Perfect
ought to I have obstructed? ought to you have obstructed? ought to he have obstructed? ought to we have obstructed? ought to you have obstructed? ought to they have obstructed?
V-ing perfect
ought to I have been obstructing? ought to you have been obstructing? ought to he have been obstructing? ought to we have been obstructing? ought to you have been obstructing? ought to they have been obstructing?
Interro-negative form
Simple form
oughtn't I to obstruct? oughtn't you to obstruct? oughtn't he to obstruct? oughtn't we to obstruct? oughtn't you to obstruct? oughtn't they to obstruct?
V-ing form
oughtn't I to be obstructing? oughtn't you to be obstructing? oughtn't he to be obstructing? oughtn't we to be obstructing? oughtn't you to be obstructing? oughtn't they to be obstructing?
Perfect
oughtn't I to have obstructed? oughtn't you to have obstructed? oughtn't he to have obstructed? oughtn't we to have obstructed? oughtn't you to have obstructed? oughtn't they to have obstructed?
V-ing perfect
oughtn't I to have been obstructing? oughtn't you to have been obstructing? oughtn't he to have been obstructing? oughtn't we to have been obstructing? oughtn't you to have been obstructing? oughtn't they to have been obstructing?