TERASNE. A study on the students’ ability in using english prepositions (on, in, at, before, under): a survey at the first semester students of english language education. Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 , v. 7, n. 4, p. 157-163, 23 May 2026.