我不知道那是甚麼。

I don't know what it is.

Source: Tatoeba

Sentence Composition

1 我不知道 wǒbùzhīdào I don't know.
=2 那是 nàshi
  1. (coll.) of course
  2. naturally
  3. indeed
=2 那是 nàshì
  1. (colloquial) of course
  2. of course
=3 甚 shén variant of 什 shén
=3 甚 shèn
  1. excessive; undue
  2. to exceed; to be more than
  3. very; extremely
  4. (dialect) what; whatever (Taiwan pr. shén)
=4 麼 má exclamatory final particle
=4 麼 ma interrogative final particle
=4 麼 me suffix, used to form interrogative 什么 shénme, what?, indefinite 这么 zhème thus, etc
=4 麼 mó
  1. tiny
  2. insignificant