4 sentences

1. 告诉他们别洗车。

   gào​sù tā​men bié xǐ chē.

   Tell them not to wash the car.

   Source: OpenSubtitles

2. 他正在洗他的车。

   tā zhèng​zài xǐ tā de chē.

   He is washing his car.

   Source: Tatoeba

3. 他一周洗一次车。

   tā yī​zhōu xǐ yī​cì chē.

   He washes his car once a week.

   Source: Tatoeba

4. 放学后，他给草坪除草，粉刷房屋，洗车。

   fàng xué hòu, tā gěi cǎo​píng chú cǎo, fěn​shuā fáng​wū, xǐ chē.

   After school, he mowed lawns, painted houses and washed cars.

   Source: CCMatrix