 In the north, Andean Spanish is spoken and in the northeast there is a great influence from Paraguayan Spanish.Argentina is one of several Spanish-speaking countries (along with Uruguay, Paraguay, El Salvador, Nicaragua, Honduras and Costa Rica) that almost universally use what is known as "voseo"—the use of the pronoun "vos" instead of "tú" (the familiar "you") as well as its corresponding verb forms.The most prevalent dialect is "Rioplatense", whose speakers are located primarily in the basin of the Río de la Plata.