湯姆在幫忙。

Tom was helping out.

Source: Tatoeba

Sentence Composition

1 湯姆 Tāngmǔ Tom (name)
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 幫忙 bāngmáng
  1. to help
  2. to lend a hand
  3. to do a favor
  4. to do a good turn