This thesis project will analyze interference from Spanish (L1) to English (L2) for the personal pronoun "it" among English language learners. The researcher, Lor gia Rueda de León Barbosa, will conduct a descriptive study to determine how factors like English proficiency level, exposure to English, and age influence misuse of the pronoun. The study aims to provide useful information for both students and teachers on common errors and how to explicitly teach pronoun functions to improve language acquisition.