This study aims to examine the forms and patterns of interlanguage among hospitality vocational students in English job interview practices. The study is motivated by the importance of professional communication skills in the international hospitality sector, particularly during global job interviews that require linguistic and pragmatic competence simultaneously. A descriptive qualitative approach was employed, supported by frequency counts of identified errors. Data were collected through job interview simulations, performance observations, interview transcripts, and documentation. The analysis focused on four categories of linguistic errors: morphological, syntactic, lexical, and pragmatic errors. The findings showed that syntactic errors were the most frequent, followed by morphological, lexical, and pragmatic errors. The identified problems included inconsistent tense use, inaccurate sentence structures, inappropriate vocabulary choices in hospitality contexts, and expressions that did not adequately reflect professional international communication. The findings also indicated that communication anxiety and limited exposure to authentic simulation-based learning affected students’ performance during job interviews. This study contributes to Second Language Acquisition (SLA) research by extending interlanguage analysis to professional hospitality communication. Practically, the findings provide a conceptual basis for developing an English Job Interview training model based on error analysis to strengthen the employability and professional communication skills of hospitality vocational students.
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