Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I ought to forget forget you ought to forget forget he ought to forget forget we ought to forget forget you ought to forget forget they ought to forget forget
V-ing form
I ought to be forget forgeting you ought to be forget forgeting he ought to be forget forgeting we ought to be forget forgeting you ought to be forget forgeting they ought to be forget forgeting
Perfect
I ought to have forget forgeted you ought to have forget forgeted he ought to have forget forgeted we ought to have forget forgeted you ought to have forget forgeted they ought to have forget forgeted
V-ing perfect
I ought to have been forget forgeting you ought to have been forget forgeting he ought to have been forget forgeting we ought to have been forget forgeting you ought to have been forget forgeting they ought to have been forget forgeting
Negation
Simple form
I ought not to forget forget you ought not to forget forget he ought not to forget forget we ought not to forget forget you ought not to forget forget they ought not to forget forget
V-ing form
I ought not to forget forgeting you ought not to forget forgeting he ought not to forget forgeting we ought not to forget forgeting you ought not to forget forgeting they ought not to forget forgeting
Perfect
I ought not to have forget forgeted you ought not to have forget forgeted he ought not to have forget forgeted we ought not to have forget forgeted you ought not to have forget forgeted they ought not to have forget forgeted
V-ing perfect
I ought not to have been forget forgeting you ought not to have been forget forgeting he ought not to have been forget forgeting we ought not to have been forget forgeting you ought not to have been forget forgeting they ought not to have been forget forgeting
Interrogative form
Simple form
ought to I forget forget? ought to you forget forget? ought to he forget forget? ought to we forget forget? ought to you forget forget? ought to they forget forget?
V-ing form
ought to I be forget forgeting? ought to you be forget forgeting? ought to he be forget forgeting? ought to we be forget forgeting? ought to you be forget forgeting? ought to they be forget forgeting?
Perfect
ought to I have forget forgeted? ought to you have forget forgeted? ought to he have forget forgeted? ought to we have forget forgeted? ought to you have forget forgeted? ought to they have forget forgeted?
V-ing perfect
ought to I have been forget forgeting? ought to you have been forget forgeting? ought to he have been forget forgeting? ought to we have been forget forgeting? ought to you have been forget forgeting? ought to they have been forget forgeting?
Interro-negative form
Simple form
ought I not to forget forget? ought you not to forget forget? ought he not to forget forget? ought we not to forget forget? ought you not to forget forget? ought they not to forget forget?
V-ing form
ought I not to be forget forgeting? ought you not to be forget forgeting? ought he not to be forget forgeting? ought we not to be forget forgeting? ought you not to be forget forgeting? ought they not to be forget forgeting?
Perfect
ought I not to have forget forgeted? ought you not to have forget forgeted? ought he not to have forget forgeted? ought we not to have forget forgeted? ought you not to have forget forgeted? ought they not to have forget forgeted?
V-ing perfect
ought I not to have been forget forgeting? ought you not to have been forget forgeting? ought he not to have been forget forgeting? ought we not to have been forget forgeting? ought you not to have been forget forgeting? ought they not to have been forget forgeting?