jˈɛs slˈæʃ nˈoʊ kwˈɛstʃən pˈɑːɹɾɪkəlz ɪn ˈɪsθməs zˈæpoʊɾək ɑːɹ nˌɑːt mˈændətˌoːɹi, haʊˈɛvɚ, ðə kwˈɛstʃən pˈɑːɹɾɪkəl lˈɑː?ɪz ɹᵻkwˈaɪɚd ɪn ðiːz fˈɔːɹm ʌv kwˈɛstʃənz.
Yes/no question particles In Isthmus Zapotec are not mandatory, however, the question particle [lá?] is required in these form of questions.