～がなければ ..... だ（仮定法）

If it wasn't/weren't for ～ ,    would/should

(wasn't より weren't の方がフォーマル)

STUDY ENGLISH

I'm not sure about that. It's quite a long time ago. But one thing is sure. If it wasn't for music such as The Beatles and The Rolling Stones things like that, I wouldn't be interested to study English at all.

EARTHQUAKE/JAPAN

If it wasn't for earthquakes, Japan should be a better place.

But for ～, Without ～, Except ～

(Without が日常会話的)

COMMUTE

Without heavy traffic jam, It would take about 40 minutes driving.

traffic jam　交通渋滞

crowding 人の渋滞