3 sentences

1. 此前从来没有人洗过树叶。

   cǐ​qián cóng​lái méi​yǒu rén xǐ guo shù​yè.

   Never before had anyone washed leaves.

   Source: CCMatrix

2. 这两支球队此前从未互相对抗过。

   zhè liǎng zhī qiú​duì cǐ​qián cóng​wèi hù​xiāng duì​kàng guo.

   These two teams have never faced each other before.

   Source: CCMatrix

3. 此前，诊所几乎所有的钱都花在了柴油上。

   cǐ​qián, zhěn​suǒ jī​hū suǒ​yǒu de qián dōu huā zài le chái​yóu shang.

   Previously nearly all the clinic’s money was spent on diesel.

   Source: CCMatrix