I ought to dupe you ought to dupe he ought to dupe we ought to dupe you ought to dupe they ought to dupe
V-ing form
I ought to be duping you ought to be duping he ought to be duping we ought to be duping you ought to be duping they ought to be duping
Perfect
I ought to have duped you ought to have duped he ought to have duped we ought to have duped you ought to have duped they ought to have duped
V-ing perfect
I ought to have been duping you ought to have been duping he ought to have been duping we ought to have been duping you ought to have been duping they ought to have been duping
Negation
Simple form
I ought not to dupe you ought not to dupe he ought not to dupe we ought not to dupe you ought not to dupe they ought not to dupe
V-ing form
I ought not to duping you ought not to duping he ought not to duping we ought not to duping you ought not to duping they ought not to duping
Perfect
I ought not to have duped you ought not to have duped he ought not to have duped we ought not to have duped you ought not to have duped they ought not to have duped
V-ing perfect
I ought not to have been duping you ought not to have been duping he ought not to have been duping we ought not to have been duping you ought not to have been duping they ought not to have been duping
Interrogative form
Simple form
ought to I dupe? ought to you dupe? ought to he dupe? ought to we dupe? ought to you dupe? ought to they dupe?
V-ing form
ought to I be duping? ought to you be duping? ought to he be duping? ought to we be duping? ought to you be duping? ought to they be duping?
Perfect
ought to I have duped? ought to you have duped? ought to he have duped? ought to we have duped? ought to you have duped? ought to they have duped?
V-ing perfect
ought to I have been duping? ought to you have been duping? ought to he have been duping? ought to we have been duping? ought to you have been duping? ought to they have been duping?
Interro-negative form
Simple form
ought I not to dupe? ought you not to dupe? ought he not to dupe? ought we not to dupe? ought you not to dupe? ought they not to dupe?
V-ing form
ought I not to be duping? ought you not to be duping? ought he not to be duping? ought we not to be duping? ought you not to be duping? ought they not to be duping?
Perfect
ought I not to have duped? ought you not to have duped? ought he not to have duped? ought we not to have duped? ought you not to have duped? ought they not to have duped?
V-ing perfect
ought I not to have been duping? ought you not to have been duping? ought he not to have been duping? ought we not to have been duping? ought you not to have been duping? ought they not to have been duping?