Position of Object Pronouns - include
Object pronouns normally occur immediately before the verb. However, if the verb is an affirmative command, an infinitive, or a gerund (-ndo form), the object pronouns are attached to the end of the verb form. Note that when pronouns are appended to a verb a written accent mark is necessary when the stressed syllable is more than two syllables from the end of the word.
No lo veo. - I don't see it. ¡No me digas nada! - Don't say anything to me! ¡Háblenos usted! - Talk to us! Favor de darme el libro. - Please give me the book. —¿Qué estás haciendo? - What are you doing? —Quitándome el suéter. - Taking off my sweater.
If the verb form consists of a conjugated verb and either an infinitive or an -ndo form, the user has the option of placing the object pronouns before the conjugated verb or attaching them to the end of the unconjugated one.
Voy a verlo/Lo voy a ver.
I'm going to see him/you/it. (masculine)
Estamos buscándola/La estamos buscando.
We're looking for her/you/it. (feminine)