I ought to contrast you ought to contrast she ought to contrast we ought to contrast you ought to contrast they ought to contrast
V-ing form
I ought to be contrasting you ought to be contrasting she ought to be contrasting we ought to be contrasting you ought to be contrasting they ought to be contrasting
Perfect
I ought to have contrasted you ought to have contrasted she ought to have contrasted we ought to have contrasted you ought to have contrasted they ought to have contrasted
V-ing perfect
I ought to have been contrasting you ought to have been contrasting she ought to have been contrasting we ought to have been contrasting you ought to have been contrasting they ought to have been contrasting
Negation
Simple form
I oughtn't to contrast you oughtn't to contrast she oughtn't to contrast we oughtn't to contrast you oughtn't to contrast they oughtn't to contrast
V-ing form
I oughtn't to be contrasting you oughtn't to be contrasting she oughtn't to be contrasting we oughtn't to be contrasting you oughtn't to be contrasting they oughtn't to be contrasting
Perfect
I oughtn't to have contrasted you oughtn't to have contrasted she oughtn't to have contrasted we oughtn't to have contrasted you oughtn't to have contrasted they oughtn't to have contrasted
V-ing perfect
I oughtn't to have been contrasting you oughtn't to have been contrasting she oughtn't to have been contrasting we oughtn't to have been contrasting you oughtn't to have been contrasting they oughtn't to have been contrasting
Interrogative form
Simple form
ought to I contrast? ought to you contrast? ought to she contrast? ought to we contrast? ought to you contrast? ought to they contrast?
V-ing form
ought to I be contrasting? ought to you be contrasting? ought to she be contrasting? ought to we be contrasting? ought to you be contrasting? ought to they be contrasting?
Perfect
ought to I have contrasted? ought to you have contrasted? ought to she have contrasted? ought to we have contrasted? ought to you have contrasted? ought to they have contrasted?
V-ing perfect
ought to I have been contrasting? ought to you have been contrasting? ought to she have been contrasting? ought to we have been contrasting? ought to you have been contrasting? ought to they have been contrasting?
Interro-negative form
Simple form
oughtn't I to contrast? oughtn't you to contrast? oughtn't she to contrast? oughtn't we to contrast? oughtn't you to contrast? oughtn't they to contrast?
V-ing form
oughtn't I to be contrasting? oughtn't you to be contrasting? oughtn't she to be contrasting? oughtn't we to be contrasting? oughtn't you to be contrasting? oughtn't they to be contrasting?
Perfect
oughtn't I to have contrasted? oughtn't you to have contrasted? oughtn't she to have contrasted? oughtn't we to have contrasted? oughtn't you to have contrasted? oughtn't they to have contrasted?
V-ing perfect
oughtn't I to have been contrasting? oughtn't you to have been contrasting? oughtn't she to have been contrasting? oughtn't we to have been contrasting? oughtn't you to have been contrasting? oughtn't they to have been contrasting?