I ought to think you ought to think he ought to think we ought to think you ought to think they ought to think
V-ing form
I ought to be thinking you ought to be thinking he ought to be thinking we ought to be thinking you ought to be thinking they ought to be thinking
Perfect
I ought to have thought you ought to have thought he ought to have thought we ought to have thought you ought to have thought they ought to have thought
V-ing perfect
I ought to have been thinking you ought to have been thinking he ought to have been thinking we ought to have been thinking you ought to have been thinking they ought to have been thinking
Negation
Simple form
I ought not to think you ought not to think he ought not to think we ought not to think you ought not to think they ought not to think
V-ing form
I ought not to thinking you ought not to thinking he ought not to thinking we ought not to thinking you ought not to thinking they ought not to thinking
Perfect
I ought not to have thought you ought not to have thought he ought not to have thought we ought not to have thought you ought not to have thought they ought not to have thought
V-ing perfect
I ought not to have been thinking you ought not to have been thinking he ought not to have been thinking we ought not to have been thinking you ought not to have been thinking they ought not to have been thinking
Interrogative form
Simple form
ought to I think? ought to you think? ought to he think? ought to we think? ought to you think? ought to they think?
V-ing form
ought to I be thinking? ought to you be thinking? ought to he be thinking? ought to we be thinking? ought to you be thinking? ought to they be thinking?
Perfect
ought to I have thought? ought to you have thought? ought to he have thought? ought to we have thought? ought to you have thought? ought to they have thought?
V-ing perfect
ought to I have been thinking? ought to you have been thinking? ought to he have been thinking? ought to we have been thinking? ought to you have been thinking? ought to they have been thinking?
Interro-negative form
Simple form
ought I not to think? ought you not to think? ought he not to think? ought we not to think? ought you not to think? ought they not to think?
V-ing form
ought I not to be thinking? ought you not to be thinking? ought he not to be thinking? ought we not to be thinking? ought you not to be thinking? ought they not to be thinking?
Perfect
ought I not to have thought? ought you not to have thought? ought he not to have thought? ought we not to have thought? ought you not to have thought? ought they not to have thought?
V-ing perfect
ought I not to have been thinking? ought you not to have been thinking? ought he not to have been thinking? ought we not to have been thinking? ought you not to have been thinking? ought they not to have been thinking?