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News>>Mandarin Tone Change Rules 汉语声调变化规则
Mandarin Tone Change Rules 汉语声调变化规则
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Tone sandhi is a phonological change occurring in tonal languages, in which the tones assigned to individual words or morphemes change based on the pronunciation of adjacent words or morphemes.

It is a very common phenomenon in Mandarin Chinese. Here we list some specific rules that cause tones to change in certain situations.

"不"的变调 Tone sandhi of "不"

"不" is a fourth tone syllable by itself. But it becomes a second tone when followed by a fourth tone. For example:

不喝bù hē / 不忙bù máng / 不好bù hǎo / 不是bú shì / 不要bú yào

"一"的变调 Tone sandhi of "一"

"一" is normally first tone, but this changes in two situations. It is second tone when followed by a fourth tone and when followed by a first, second or third tone, it is fourth tone.

一个yí gè / 一步yí bù / 一般yì bān / 一直yì zhí / 一起yì qǐ

三声变调 Third-tone sandhi

A third tone, when followed by a first, second or fourth tone, or most neutral tone syllables, usually becomes a half third tone, that is, a tone that only falls but does not rise. The tone mark is unchanged. For example:

你哥哥nǐ gē ge / 我要wǒ yào / 你忙吗nǐ máng ma