我不知道這是不是真的。

I don't know if it is true.

Source: Tatoeba

Sentence Composition

1 我不知道 wǒbùzhīdào I don't know.
=2 這 zhè
  1. (pronoun) this; these
  2. (bound form) this; the (followed by a noun)
  3. (bound form) this; these (followed by a classifier) (in this sense, commonly pr. zhèi, esp. in Beijing)
=2 這 zhèi (coll.) this
3 是不是 shìbùshì
  1. is or isn't
  2. yes or no
  3. whether or not
=4 真的 zhēnde
  1. really; truly; indeed
  2. real; true; genuine
  3. (math.) proper
=4 真的 zhēndí
  1. (literary) true; real
  2. true; real