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