DOUBLE OBJECT PRONOUNS = LOS COMPLEMENTOS DOBLES
When a verb has two object pronouns, (one direct and one indirect), the indirect object (usually the object pronoun referring to the person) precedes the direct object pronoun (usually the object pronoun referring to a thing).
Juan me lo (la) da. = John gives it to me. If "it" is masculine singular = lo BUT if "it" is feminine singular = la.
Juan me los (las) da. = John gives them to me. If "them" is masculine plural it is los BUT if it is feminine plural, it is las.
Juan te lo (la) da. = John gives it to you (fam.)
Juan te los (las) da. = John gives them to you (fam.)
Juan se lo (la) da. = John gives it to him, to her, to you OR to them.
Juan se los (las) da. = John gives them to him, to her, to you, to them.
Juan nos lo (la) da. = John gives it to us.
Juan nos los (las) da. = John gives them to us.
Juan os lo (la) da. = John gives it to you (fam. pl.)
Juan os los (las) da. = John gives it to you (fam. pl.)
NOTE: "Se" replaces "le" or "les" before "lo, la, los, las.)
Juan le da el libro. John gives the book to him. BECOMES Juan se lo da. = John gives it to him.
*The meaning of "se" may be clarified by addint "a él, a ella, a Ud., a ellos (-as), a Uds." after the verb.
Juan se lo da a ella. = John gives it to her.
When two object pronouns are used, the direct object pronoun is usually "lo, la, los, las."
POSITION OF DOUBLE-OBJECT PRONOUNS:
Double object pronouns, like single object pronouns, generally precede the verb.
Juan no se lo vende. = Joh does not sell it to him, to her, to you, to them.
EXCEPTIONS:
1. Affirmative command.
Véndaselo Ud. = Sell it to him.
BUT
No se lo venda Ud. = Don't sell it to him.
2. Infinitive.
Voy a vendérselo. = I am going to sell it to him.
Se lo voy a vender.
Both are correct but notice wherever you put the double-object pronouns, they stay together! If they follow, you have to worry about an accent mark.
3. Present participle.
Alberto está vendiéndoselo. = Albert is selling it to himn, to her, to you, to them.
OR
Alberto se lo está vendiendo.
Both are correct and attaching anything to an -ndo form means a written accent mark!
NOTE: Double object pronouns follow and are attached to the affirmative command BUT precede the negative command.
Object pronouns may either follow the infinitive and present participle OR precede the verb on which they depend.
When double-object pronouns are attached to the verb, a written accent mark is required on the vowel that is stressed.
Again, let me know if you would like any exercises.
Sra