湯姆一直在說謊。

Tom has been lying all along.

Source: Tatoeba

Sentence Composition

1 湯姆 Tāngmǔ Tom (name)
2 一直 yīzhí
  1. straight (in a straight line)
  2. continuously; always; all the way through
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 說謊 shuōhuǎng
  1. to lie
  2. to tell an untruth