Indirect Object Pronoun Placement
Let’s take a look at the rules for indirect object placement with simple verbs, compound verbs, and commands.
In sentences with simple verbs (verbs made up of only one word), the indirect object pronoun goes before the verb.
In affirmative sentences with simple verbs, the indirect object pronoun comes directly before the verb.
In sentences with compound verbs (verbs made up of multiple words), there are two options for where the indirect object pronoun can go.
1. Before the conjugated verb
The first option essentially follows the same rules as those for simple verbs: the indirect object comes before the conjugated verb.
2. Attached to an infinitive or present participle
The second option is to attach the indirect object pronoun to an infinitive or a present participle.
Note the accent on sirviéndonos. This is used to preserve the original stress of the verb form.