yǐ​qián HSK2

formerly

以前 yǐ​qián
formerly directional
in the past; previously

以前认识

yǐ​qián rèn​shi .

I didn't know him before.

before directional
preceding a specific time or event; ago

Three months ago, he was working in Shanghai.

Frequency

Movie subtitles
369.4 per million appears in 74% of films
Written text
163.4 per million

Details

HSK 2.0
Level 3
HSK 3.0
Level 2

Sources

Definitions
CC-CEDICT