I ought to foreknow you ought to foreknow he ought to foreknow we ought to foreknow you ought to foreknow they ought to foreknow
V-ing form
I ought to be foreknowing you ought to be foreknowing he ought to be foreknowing we ought to be foreknowing you ought to be foreknowing they ought to be foreknowing
Perfect
I ought to have foreknown you ought to have foreknown he ought to have foreknown we ought to have foreknown you ought to have foreknown they ought to have foreknown
V-ing perfect
I ought to have been foreknowing you ought to have been foreknowing he ought to have been foreknowing we ought to have been foreknowing you ought to have been foreknowing they ought to have been foreknowing
Negation
Simple form
I ought not to foreknow you ought not to foreknow he ought not to foreknow we ought not to foreknow you ought not to foreknow they ought not to foreknow
V-ing form
I ought not to foreknowing you ought not to foreknowing he ought not to foreknowing we ought not to foreknowing you ought not to foreknowing they ought not to foreknowing
Perfect
I ought not to have foreknown you ought not to have foreknown he ought not to have foreknown we ought not to have foreknown you ought not to have foreknown they ought not to have foreknown
V-ing perfect
I ought not to have been foreknowing you ought not to have been foreknowing he ought not to have been foreknowing we ought not to have been foreknowing you ought not to have been foreknowing they ought not to have been foreknowing
Interrogative form
Simple form
ought to I foreknow? ought to you foreknow? ought to he foreknow? ought to we foreknow? ought to you foreknow? ought to they foreknow?
V-ing form
ought to I be foreknowing? ought to you be foreknowing? ought to he be foreknowing? ought to we be foreknowing? ought to you be foreknowing? ought to they be foreknowing?
Perfect
ought to I have foreknown? ought to you have foreknown? ought to he have foreknown? ought to we have foreknown? ought to you have foreknown? ought to they have foreknown?
V-ing perfect
ought to I have been foreknowing? ought to you have been foreknowing? ought to he have been foreknowing? ought to we have been foreknowing? ought to you have been foreknowing? ought to they have been foreknowing?
Interro-negative form
Simple form
ought I not to foreknow? ought you not to foreknow? ought he not to foreknow? ought we not to foreknow? ought you not to foreknow? ought they not to foreknow?
V-ing form
ought I not to be foreknowing? ought you not to be foreknowing? ought he not to be foreknowing? ought we not to be foreknowing? ought you not to be foreknowing? ought they not to be foreknowing?
Perfect
ought I not to have foreknown? ought you not to have foreknown? ought he not to have foreknown? ought we not to have foreknown? ought you not to have foreknown? ought they not to have foreknown?
V-ing perfect
ought I not to have been foreknowing? ought you not to have been foreknowing? ought he not to have been foreknowing? ought we not to have been foreknowing? ought you not to have been foreknowing? ought they not to have been foreknowing?