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The Tone Changes Rules of “不”

1. 不 (bù)

  • 不 is a 4th tone syllable by itself.
  • The tone doesn’t change when 不 is followed by a 1st tone, 2nd tone or 3rd tone syllable.

e.g.

不 + 1st Tone不吃 ( chī)
不喝 ( hē)
不听 ( tīng)
不 + 2nd Tone不行 ( xíng)
不足 ( zú)
不明白 ( míngbái)
不 + 3rd Tone不想 ( xiǎng)
不懂 ( dǒng)
不可以 ( kěyǐ)

2. 不 (bú)

不 becomes the 2nd tone when it’s followed by a 4th tone syllable.

e.g.

不 + 4th Tone不要 ( yào)
不醉 ( zuì)
不看 ( kàn)

3. 不 (bu)

When 不 is in the between of “A 不 A” pattern phrase,不 will be the neutral tone.

e.g.

A  不  A好不好 (hǎo bu hǎo)
多不多 (duō bu duō)
行不行 (xíng bu xíng)

Practice

  • 不是你的错 (___ shì nǐ de cuò)It’s not your fault.
  • 你想不想来? (Nǐ xiǎng ___ xiǎng lái? )Do you want to come?
  • 不要 (___ yào)don’t want
  • 不清楚 (___ qīngchǔ)Not clear
  • 不明白 (___ míngbái)Not understand
  • 这条裙子不适合你。(Zhè tiáo qúnzi ___ shìhé nǐ. )This dress doesn’t suit you.
  • 不能不懂装懂。(___ néng ___ dǒng zhuāng dǒng. )You can’t pretend to understand something you don’t understand.
  • 有朋自远方来,不亦乐乎。 (Yǒupéng zì yuǎnfāng lái, ___ yì yuè hū.)Have friends come from afar, which is a pleasure.

Key:

  • 不是你的错 (Bú shì nǐ de cuò)It’s not your fault.
  • 你想不想来? (Nǐ xiǎng bu xiǎng lái? )Do you want to come?
  • 不要 (Bú yào)don’t want
  • 不清楚 (Bù qīngchǔ)Not clear
  • 不明白 (Bù míngbái)Not understand
  • 这条裙子不适合你。(Zhè tiáo qúnzi bú shìhé nǐ. )This dress doesn’t suit you.
  • 不能不懂装懂。(Bù néng bù dǒng zhuāng dǒng. )You can’t pretend to understand something you don’t understand.
  • 有朋自远方来,不亦乐乎。 (Yǒupéng zì yuǎnfāng lái, bú yì yuè hū.)Have friends come from afar, which is a pleasure.
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