I need to fill in the blanks with the correct indirect or direct pronouns.

Voy a compara esta corbata para mi papa. Voy a ------------- para su cumpleanos.

First of all, it is an infinitive after "voy a comprar" and this sentence can have both a direct- and indirect-object pronoun.

I am going to buy it for him. = Voy a comprársela para mi papá para su cumpleaños.

Because there is an infinitive here, there is also another placement ch oice for the object-pronouns.

Se la voy a comprar...

Sra

To fill in the blanks with the correct indirect or direct pronouns, let's analyze the sentence.

The verb "comprar" (to buy) is being used, which can take both a direct object (the thing being bought) and an indirect object (the person for whom the thing is being bought).

In this case:
- "Esta corbata" (this tie) is the direct object, as it is the thing being bought.
- "Mi papa" (my dad) is the indirect object, as he is the person for whom the tie is being bought.

Now, let's choose the correct pronouns to fill in the blanks:

- For the direct object pronoun, we use "la" because "this tie" is singular and feminine. So, the sentence becomes: "Voy a comprarla".
- For the indirect object pronoun, we use "le" because "my dad" is singular and masculine. So, the sentence becomes: "Voy a comprarle".

Putting it all together, the corrected sentence is: "Voy a comprarla para su cumpleaños."

Here's a breakdown of the steps to solve similar problems:
1. Identify the verb and determine if it can take a direct and/or indirect object.
2. Identify the direct object (the thing being bought, in this case) and its gender and number.
3. Identify the indirect object (the person for whom the thing is being bought, in this case) and its gender and number.
4. Choose the correct pronouns based on the gender and number of the objects.
5. Replace the objects in the sentence with the correct pronouns.