誰也不知道為甚麼。

Heaven knows why.

Source: Tatoeba

Sentence Composition

1 誰 shéi
  1. who
  2. also pr. shuí
2 也不 yěbù
  1. neither
  2. nor
3 知道 zhīdào
  1. to know; to become aware of
  2. also pr. zhīdao
=4 為 wéi
  1. as (in the capacity of)
  2. to take sth as
  3. to act as
  4. to serve as
  5. to behave as
  6. to become
  7. to be
  8. to do
  9. by (in the passive voice)
=4 為 wèi
  1. because of
  2. for
  3. to
=5 甚 shén variant of 什 shén
=5 甚 shèn
  1. excessive; undue
  2. to exceed; to be more than
  3. very; extremely
  4. (dialect) what; whatever (Taiwan pr. shén)
=6 麼 má exclamatory final particle
=6 麼 ma interrogative final particle
=6 麼 me suffix, used to form interrogative 什麼 shénme, what?, indefinite 這麼 zhème thus, etc
=6 麼 mó
  1. tiny
  2. insignificant