“…Language learners are expected to acquire proficiency in three primary types of diphthongs, namely Diphthong /eɪ/, Diphthong /əʊ/, Diphthong /aɪ/, Diphthong /aʊ/, Diphthong /ɔɪ/, Diphthong /ɪə/, Diphthong /ɛə/, and Diphthong /ʊə/, as outlined by Dyah (2020). The /eɪ/ diphthong, known as a front cover diphthong, initiates with the tongue in the /e/ vowel position, a front vowel slightly below the mid-close position, moving towards the /ɪ/ position, just above mid-close, though the final position may not always be fully reached, with the lips initially open and gradually closing (Dyah, 2020;Nugraha et al, 2022). Examples include words like "raid /reɪd/", "pain /peɪn/", "fail /feɪl/", and "sale /seɪl/".…”