I ought to exchange you ought to exchange she 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 she 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 she 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 she 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 ought not to exchange you ought not to exchange she ought not to exchange we ought not to exchange you ought not to exchange they ought not to exchange
V-ing form
I ought not to exchanging you ought not to exchanging she ought not to exchanging we ought not to exchanging you ought not to exchanging they ought not to exchanging
Perfect
I ought not to have exchanged you ought not to have exchanged she ought not to have exchanged we ought not to have exchanged you ought not to have exchanged they ought not to have exchanged
V-ing perfect
I ought not to have been exchanging you ought not to have been exchanging she ought not to have been exchanging we ought not to have been exchanging you ought not to have been exchanging they ought not to have been exchanging
Interrogative form
Simple form
ought to I exchange? ought to you exchange? ought to she 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 she 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 she 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 she 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
ought I not to exchange? ought you not to exchange? ought she not to exchange? ought we not to exchange? ought you not to exchange? ought they not to exchange?
V-ing form
ought I not to be exchanging? ought you not to be exchanging? ought she not to be exchanging? ought we not to be exchanging? ought you not to be exchanging? ought they not to be exchanging?
Perfect
ought I not to have exchanged? ought you not to have exchanged? ought she not to have exchanged? ought we not to have exchanged? ought you not to have exchanged? ought they not to have exchanged?
V-ing perfect
ought I not to have been exchanging? ought you not to have been exchanging? ought she not to have been exchanging? ought we not to have been exchanging? ought you not to have been exchanging? ought they not to have been exchanging?