전부터

since before

→ 전
phrase Uncommon #6,858
since before Marks something that started or was already true before a reference point; with 얼마 전부터, it means “since a while ago.”
KO: 우리는 작년부터 전부터 알고 지냈어요.
EN: We had known each other since before last year.

전부터 알던 사이 입니다

We've known each other for a long time.

— 데드맨스 와이어 (2026)

나 엄마 랑 만나기 전부터 했는데?

I was already doing it before I met Mom.

— 브로커 (2022)

그 둘이 만나기 전부터 어쨌든 형과 결혼했잖아

In any case, she married your older brother before the two of them met.

— 아모레스 페로스 (2000)

전부터 그렇게 돼 있었어

It had been that way from the beginning.

— 장화, 홍련 (2003)

몇 주 전부터 그를 보지 못했어.

I haven't seen him for a few weeks.

— 주토피아 (2016)