As well as talking about the [past in general](Expressing_"before"_in_general_with_"yiqian" "wikilink"), you can use 以前 (yǐqián) to talk about things that happened *before* a specific time. Structure ---------
Time / Verb + 以前, ....
The time can be a specific time, or an action (technically, "*when* the action was done"). Examples --------
- 吃饭 以前 ,你 洗 手 了 吗?Chīfàn yǐqián, nǐ xǐ shǒu le ma?Did you wash your hands before eating? - 睡觉 以前 ,不要 吃 东西。Shuìjiào yǐqián, bùyào chī dōngxi.Don't eat anything before you go to sleep. - 两 年 以前 , 你 认识 他 吗? Liǎng nián yǐqián, nǐ rènshi tā ma? Did you know him two years ago? - 星期五 以前 ,你 要 做 完 这些 工作。Xīngqīwǔ yǐqián, nǐ yào zuò wán zhèxiē gōngzuò.You need to finish this work before Friday. - 上 大学 以前,你 来 过 上海 吗?Shàng dàxué yǐqián, nǐ lái guo shànghǎi ma? Before you went to college, did you ever come to Shanghai? - 结婚 以前 ,你 应该 先 买 房子。Jiéhūn yǐqián, nǐ yīnggāi xiān mǎi fángzi.Before getting married, you should first buy a house. - 二十 年 以前,这里 是 一 个 公园。Èrshí nián yǐqián, zhèlǐ shì yī gè gōngyuán.Twenty years ago, this was a park. - 几 个 月 以前 ,他们 分手 了。Jǐ gè yuè yǐqián, tāmen fēnshǒu le.They broke up a few months ago. - 毕业 以前,我 要 找到 工作。Bìyè yǐqián, wǒ yào zhǎodào gōngzuò.I need to find a job before graduation. - 当 总统 以前,Obama 没有 白 头发。Dāng zǒngtǒng yǐqián, Obama méiyǒu bái tóufa.Before he became the president, Obama didn't have white hair.
Note that this use of 以前 (yǐqián) can also be shortened to 前 (qián). See also -------- - [After a specific time](After_a_specific_time "wikilink") - [Expressing "before" in general with "yiqian"](Expressing_"before"_in_general_with_"yiqian" "wikilink") - [Before and after with "zhiqian" and "zhihou"](Before_and_after_with_"zhiqian"_and_"zhihou" "wikilink") Sources and further reading --------------------------- - [Modern Mandarin Chinese Grammar: A Practical Guide](Modern_Mandarin_Chinese_Grammar:_A_Practical_Guide "wikilink") (pp. 260-1) [→buy](http://www.amazon.com/gp/product/0415700108?ie=UTF8&tag=allset-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0415700108) - [Boya Chinese Elementary Starter 2 (博雅汉语初经起步篇)](Boya_Chinese_Elementary_Starter_2_(博雅汉语初经起步篇) "wikilink") (pp. 11-12) [→buy](http://www.amazon.com/gp/product/7301078617/ref%3das_li_ss_tl?ie=UTF8&tag=allset-20&linkCode=as2&camp=217145&creative=399373&creativeASIN=7301078617) [Category:A2 grammar points](Category:A2_grammar_points "wikilink")