• Isabela writes a letter to Ramón.
⇢Isabela se lo escribe.
• Carlos made a cake for his friends.
⇢ Carlos lo hizo para ellos.
• Andrea is going to show her client a house.
⇢Andrea se los va a mostrar.
• You asked me for a book.
⇢me lo pediste por eso.
• Ricardo sent you a package
⇢ Él te envió esto.
- Direct and indirect object pronouns replace nouns and that they often refer to nouns that have already been referenced.