When we study English, we often face difficulties because of the variations between the mother tongue and the foreign language that they are learning. The differences can be made in vocabulary, grammar, etc. Sometimes, we often make mistakes when speaking or writing a sentence, paragraph, or text in English. The most common mistakes that occur are sentence structure errors or grammatical errors. This research conducted to explain the sentence structures, the dominant sentence structure used, and to explain syntactically analysis of every sentence in narrative passages of the English textbook “Bahasa Inggris Kelas X SMA/MA/SMK/MAK” published by the Ministry of Education and Culture Indonesia 2017 revision. This research was descriptive qualitative research and used content analysis as the research method. The researcher analyzed the data based on Creswell’s theory, namely: preparing and organizing, coding, and representing the data. The result of this study showed that there were 141 sentences that consisted of 55 simple sentences, 35 compound sentences, 47 complex sentences, and 4 compound-complex sentences found in the three narrative passages of the English textbook entitled “Bahasa Inggris Kelas X SMA/MA/SMK/MAK” published by the Ministry of Education and Culture Indonesia 2017.Through the discussion, the researcher found that the simple sentence mostly appears rather than a complex sentence, compound sentence, and compound-complex sentence.