было забыто

was forgotten

→ быть
phrase Rare #53,913
was forgotten A passive form; the verb changes to agree with the thing that was forgotten.
RU: Это письмо было забыто в ящике.
EN: This letter was forgotten in the drawer.

Его имя было забыто.

His name was forgotten.

Со временем это событие было забыто.

Over time, this event was forgotten.