[関係代名詞の文]
例文:
That is a tall building.
+I build it.
=That is a tall building which I build.(A)
(あれは私が建てた高いビルです。)
[関係代名詞+前置詞の文]
例文:
That is a tall building.
+I live in it.
=That is a tall building which I live in.
(あれは私が住んでいる高いビルです。)
これは関係代名詞が前置詞の目的語になっているので、
「前置詞+関係代名詞」
に書き換えられます。
=That is a tall building in which I live.(B)
[関係副詞の文]
例文:
That is a tall building.
+I live in it.
=That is a tall building.
+I live there.(there = in it)
=That is a tall building where I live.(C)
(あれは私が住んでいる高いビルです。)