我不知道他甚麼時候會出現。

I'm not sure as to when he will turn up.

Source: Tatoeba

Sentence Composition

1 我不知道 wǒbùzhīdào I don't know.
2 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
=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 什麼 shénme, what?, indefinite 這麼 zhème thus, etc
=4 麼 mó
  1. tiny
  2. insignificant
5 時候 shíhou
  1. time
  2. length of time
  3. moment
  4. period
=6 會 huì
  1. can; to have the skill; to know how to
  2. to be likely to; to be sure to
  3. to meet; to get together
  4. meeting; gathering
  5. (suffix) union; group; association
  6. (bound form) a moment (Taiwan pr. huǐ)
=6 會 kuài (bound form) to reckon accounts
=6 會 kuò only used in 會撮／会撮
7 出現 chūxiàn
  1. to appear
  2. to arise
  3. to emerge
  4. to show up