What are the prepositions in attributive clauses and their usage?

Mary is the girl from whom I borrowed the book. I borrowed a book from Mary. Common situations are as follows: 1. This is the room where he lives. This is his room. I can see the playground where they play sports. I can see the playground where they play sports. I still remember the year when I joined the party. I still remember the year when I joined the party. I still remember the day when I joined the party. I still remember the day when I joined the party. I still remember the moment when the rocket was launched. I still remember the moment when the rocket was launched. That's why he was killed. That's why he was killed. However, prepositions cannot be advanced in the following cases: (1) When who is used instead of who, and that is used instead of which, prepositions cannot be advanced. He is the boy from whom I learned English. This is the boy from whom I learn English. This should be where Tom sent the parcel. This should be where Tom delivered the parcel. (2) Prepositions cannot be advanced when omitting whom and which. This is the room where he lived. This is the room where he lived. (3) When WHEN whom and WHOM are used as the objects of verb phrases containing prepositions, prepositions generally cannot be disassembled in advance. You are the very person I am looking for. You are the very person I am looking for. This is the program he listened to. This is the program he has heard. Look at the structural answers below. (1) preposition +who-guided attributive clause When the who-guided attributive clause appears, innovative sentence patterns can appear: preposition +who-guided attributive clause. To understand this attributive clause, we need to understand the relationship between the verb and antecedent of the clause, the noun after "who" and the subject of the attributive clause, and use our reasonable imagination, so it is not difficult to find the correct logical relationship. She is the girl with whom I talked yesterday. She is the girl with whom I talked to my father yesterday. He is the boy whose boss I work for. He is the boy whose boss I work for. I stayed in the back hotel, which is a small garden. I stayed in a hotel with a garden in the back. (3) Numerals (indefinite numerals)/relative nouns including who/which leading attributive clauses+. Example: