我儿子在刷牙。

My son is brushing his teeth.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
=2 儿子 érzi son
=2 儿子 érzǐ
  1. Term of self-address, used by a man when speaking to elders.
  2. baby; infant; newborn
  3. child
3 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
4 刷牙 shuāyá to brush one's teeth