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Margarita Jara (World Languages and Cultures) co-authored with Paz Gonzalez and Carmen Kleinherenbrink (both of Leiden University), which appears in Isogloss, a journal on variation on Romance and Iberian languages. This study investigates the variability in the use of the preterit �����Գ�é (‘I sang’) and the present perfect he cantado (‘I have sung’) across three Spanish dialects: Peninsular, Peruvian, and Argentinian. The results of this research seek to contribute to the description of dialectal differences with respect to the use of the preterit and the present perfect from both a quantitative and qualitative perspective.