The Differences in Spanish Across the World

Another difference occurs in personal pronouns. In countries like Argentina and Uruguay, they use vos to address a person, while in Spain mostly tu is used. The reason for this is that when the Spanish arrived in America in the fifteenth century, vos was the more common pronoun, and it has remained in those two countries until today. Even though, in Spain itself, vos fell out of favour in the sixteenth century.