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Task 13

curriculum/challenges/english/blocks/zh-a1-warm-up-meeting-new-teammates/69032acee355bfd2ac9aaa8b.md

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--description--

Tone Sandhi of 不 (bù)

不 (bù) means "no" or "not". When it is followed by a syllable which is in the first, second or the third tone, it remains in the fourth tone.

However, when 不 (bù) is followed by a syllable which is in the fourth tone, it changes to the second tone.

This tone change is a natural adjustment in speech to make pronunciation smoother.

Examples

WrittenPronounced as
bù néngbù néng
bù xiǎngbù xiǎng
bù shìbú shì
bù huìbú huì

--assignment--

I've read this Pinyin rule.