我在關門。

I'm closing the door.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 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)
3 關門 guānmén
  1. to close a door
  2. to lock a door
  3. (of a shop etc) to close (for the night or permanently)