Step 1

In a sentence, if the letter L occurs as the first letter of both the indirect object pronoun (le, les) and the direct object pronoun (lo, las, los, las), the indirect object pronoun is changed to se.

     le lo ---> se lo
Ahora mismo se lo traigo.
      Right now I am bringing it to him.

     le la ---> se la
Juan se la presta.
      Juan loans it to her.

     le lo ---> se lo
El anciano se lo manda.
      The elderly man sends it to him.

     les los ---> se los
El hombre se los da.
      The man gives them to them.

     les las ---> se las
     Claro, se las cambio.
      Of course, I change them for her.

click here to review direct object pronouns

click here to review indirect object pronouns