4 sentences

1. 我已经三次或四次见到他了。

   wǒ yǐ​jing sān​cì huò sì​cì jiàn dào tā le.

   I have seen him three or four times.

   Source: CCMatrix

2. 这是我本周第四次尝试与您沟通。

   zhè shì wǒ běn​zhōu dì sì​cì cháng​shì yǔ nín gōu​tōng.

   This is my fourth attempt at communicating with you this week.

   Source: CCMatrix

3. 从1988年以来，我已四次访问了澳大利亚。

   cóng1988 nián yǐ​lái, wǒ yǐ sì​cì fǎng​wèn le ào​dà​lì​yà.

   I have visited Australia four times since 1988.

   Source: CCMatrix

4. 这将是他的第四次婚姻。

   zhè jiāng shì tā de dì sì​cì hūn​yīn.

   This will be his fourth marriage.

   Source: CCMatrix