بَعْضٌ also comes as mudaf. Its natural meaning depends on what follows:
بَعْضُ الطُّلَّابِ — some of the students: several members from a larger group.
بَعْضُ الْكِتَابِ — part of the book: one portion of a single whole.
Do not translate both mechanically as “some.” The first selects members; the second selects a portion.
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كُلٌّ، بَعْضٌ، أَكْثَرُ، غَيْرُ in Idafah
بَعْضٌ also comes as mudaf. Its natural meaning depends on what follows:
بَعْضُ الطُّلَّابِ — some of the students: several members from a larger group.
بَعْضُ الْكِتَابِ — part of the book: one portion of a single whole.
Do not translate both mechanically as “some.” The first selects members; the second selects a portion.