Breakdown of kare wa daigakusei de, kyoukasho o tsukatte yoshuu to fukushuu o suru you ni jibun de kimemashita.
Questions & Answers about kare wa daigakusei de, kyoukasho o tsukatte yoshuu to fukushuu o suru you ni jibun de kimemashita.
Here で is not the “place/method” particle.
It is the te-form of the copula だ (the plain form of です).
彼は大学生だ。
He is a college student.彼は大学生で、教科書を使って…
Literally: “He is a college student, and / being a college student, …”
So 大学生で ≈ “(being) a college student” and it links the background information to the main clause.
It’s similar to English: “He is a college student, and he decided…”
The comma just separates two clauses and makes the sentence easier to read:
- Clause 1 (background): 彼は大学生で
- Clause 2 (main action): 教科書を使って予習と復習をするように自分で決めました。
You can drop the comma in writing; it doesn’t change the grammar:
- 彼は大学生で教科書を使って予習と復習をするように自分で決めました。
The meaning and structure are the same; the comma is just for readability and a small pause in speech.
