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语法 · HSK 2–4

以前 (yǐqián) vs 之前 (zhīqián): "before" in Chinese

Both go AFTER the event or time they modify: 吃饭以前 / 吃饭之前 "before eating", not before it as in English. On its own at the start of a sentence, 以前 means "in the past / formerly" (我以前住在上海); 之前 refers back to a specific time just mentioned ("before that").

By Cheng Xu · Updated 4 November 2026

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Common questions

Are 以前 and 之前 interchangeable after a verb?

Yes: 出门以前 and 出门之前 both mean "before going out".