I ought to contrast you ought to contrast he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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?