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