13 sentences

1. 我们班有四十个学生。

   wǒ​men bān yǒu sì​shí ge xué​sheng.

   There are forty students in our class.

   Source: Tatoeba

2. 四十年前还没我呢。

   sì​shí nián​qián hái​méi wǒ ne.

   40 years ago I wasn't even born yet.

   Source: OpenSubtitles

3. 四十名女性在工厂工作。

   sì​shí míng nǚ​xìng zài gōng​chǎng gōng​zuò.

   Forty women work at the factory.

   Source: CCMatrix

4. 他都四十年没养过猫了。

   tā dōu sì​shí nián méi yǎng guo māo le.

   He hasn't had a cat in 40 years.

   Source: OpenSubtitles

5. 他已经过了四十岁。

   tā yǐ​jing guò le sì​shí suì.

   He is past forty.

   Source: Tatoeba

6. 超过四十亿人生活在亚洲。

   chāo guò sì​shí yì rén shēng​huó zài yà​zhōu.

   Over four billion people live in Asia.

   Source: CCMatrix

7. 四十年前，深圳是一个渔村。

   sì​shí nián​qián, shēn​zhèn shì yī​ge yú​cūn.

   Forty years ago, Shenzhen was a fishing village.

   Source: CCMatrix

8. 我不是四十岁，我三十九岁。

   wǒ bù​shì sì​shí suì, wǒ sān​shí​jiǔ suì.

   I'm not 40, I'm 39.

   Source: OpenSubtitles

9. 我觉得自己年轻了四十年。

   wǒ jué​de zì​jǐ nián​qīng le sì​shí nián.

   I feel 40 years younger.

   Source: CCMatrix

10. 我欠你四十块钱。

    wǒ qiàn nǐ sì​shí kuài qián.

    I owe you forty dollars.

    Source: Tatoeba

11. 四十岁的时候，我变成了一个作家。

    sì​shí suì de shí​hou, wǒ biàn chéng le yī​ge zuò​jiā.

    At 40, I became a writer.

    Source: CCMatrix

12. 他在四十岁之前已积聚了一大笔财富。

    tā zài sì​shí suì zhī​qián yǐ jī​jù le yī dà​bǐ cái​fù.

    Before he was forty he amassed a large fortune.

    Source: UM-Corpus: Spoken

13. 他四十个小时没吃东西了，他饿得虚弱无力。

    tā sì​shí ge xiǎo​shí méi chī dōng​xi le, tā è de xū​ruò wú​lì.

    He had not eaten in forty hours, and he was weak with hunger.

    Source: CCMatrix