Where does the direct object pronoun go in a sentence?

In Spanish, the direct object pronoun replaces the object you are talking about. In a sentence, it is always placed before the verb. For example, '(Tú)llevas el libro' = you carry the book. This becomes, '(Tú) Lo llevas' = you carry it. The direct object pronoun takes different forms depending on whether the object you are talking about is masculine/feminine (lo/la), singular or plural (los/las).