The Spanish language has many dialects throughout the world, which vary on phonological, morphological, syntactic, and lexical levels, among others. The Argentinean national dialect of Spanish readily distinguishes itself from others primarily through: (a) the use of vos instead of tit as the 2nd person singular subject pronoun, (b) the use of the [~] and [i] phonemes instead of the peninsular standard [y], and (c) the use of lunfardo, a national form of slang originated in Buenos Aires. Not only does vos replace tit as a subject, but it also has its own series of verb conjugations, specifically in the present indicative, which are not used with any other subject.
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Miller '02, Denise E., "Analysis ofthe Future Tense in Two Argentinean Cities" (2002). Honors Projects. Paper 3.