直接賓語代詞與間接賓語代詞

There are many times when the same verb has both a direct object pronoun and indirect object pronoun. Usually, the indirect object pronoun precedes the direct object pronoun and the indirect object pronouns mi, ti, ci, and vi change to me, te, ce, and ve:
    Renato porta il libro a me. (Renato brings the book to me.)
    Renato me lo porta. (Renato brings it to me.)
    Il professore insegna la lezione a voi. (The professor teaches the lesson to you.)
    Il professore vi l'insegna. (The professor teaches you the lesson.)
    For a complete chart of all the double object pronouns, see the table below.
    DOUBLE OBJECT PRONOUNS
    INDIRECT OBJECT
    PRONOUN
     LO
     LA
     LI
     LE
     NE
    mi
     me lo
     me la
     me li
     me le
     me ne
    ti
     te lo
     te la
     te li
     te le
     te ne
    gli, le, Le
     glielo
     gliela
     glieli
     gliele
     gliene
    ci
     ce lo
     ce la
     ce li
     ce le
     ce ne
    vi
     ve lo
     ve la
     ve li
     ve le
     ve ne
    ...loro
     lo...loro
     la...loro
     li...loro
     le...loro
     ne...loro
    Note the economy in words: gli, le, and Le become glie- before direct object pronouns and before ne, and combine with them to become one word