о котором я тебе рассказывал

that I told you about

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phrase Rare #31,727
that I told you about Used to refer back to a person, place, or thing previously mentioned in conversation. The ending changes to match the noun it refers to.
RU: Вышел фильм, о котором я тебе рассказывал.
EN: The movie that I told you about came out.