Question

They are forgotten.( voice change and negative)

Answer 1

I think the answer is be -

We are not being forgotton by them..

hope it help u.

Answer 2

They are forgotten when changing into passive from active with negative form, then it will become  They do not remember us.

The rules of the active and passive voice change according to the tense, verbs, pronouns and the fundamental rule remains of the active passive voice is followed in sentence formation.