你知道她是否會講英語嗎？

Do you know whether she can speak English?

Do you know whether or not she can speak English?

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 知道 zhīdào
  1. to know; to become aware of
  2. also pr. zhīdao
3 她 tā she
4 是否 shìfǒu
  1. whether (or not)
  2. if
  3. is or isn't
=5 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)
=5 會 kuài (bound form) to reckon accounts
=5 會 kuò only used in 會撮／会撮
6 講 jiǎng
  1. to speak
  2. to explain
  3. to negotiate
  4. to emphasize
  5. to be particular about
  6. as far as sth is concerned
  7. speech
  8. lecture
7 英語 Yīngyǔ English (language)
=8 嗎 má (coll.) what?
=8 嗎 mǎ used in 吗啡 mǎfēi
=8 嗎 ma (question particle for "yes-no" questions)