这个杯子很漂亮。
This cup is very pretty.
Citation: zhè gè bēi zǐ hěn piāo liàng
Connected speech: zhè gè bēi zí hěn piāo liàng
From Dictionary example: 杯子
Mandarin tone sandhi checker
Paste Chinese text or tone-marked pinyin. The dictionary reading and the connected-speech reading appear in aligned lines, with every changed syllable marked and the rule named. Nothing is saved or put in the URL.
Citation → connected
Worked examples from this site's sentences
These examples were not written for this checker. They are collected from sentences already published in the dictionary, graded readers, travel phrasebook and grammar library, then sent through the same pinyin annotator as your input for this request.
谢谢你！— 不客气！
Thank you! — You're welcome!
Citation: xiè xiè nǐ bù kè qì
Connected speech: xiè xiè nǐ bú kè qì
From Dictionary example: 不客气
请给我一杯茶。
Please give me a cup of tea.
Citation: qǐng gěi wǒ yī bēi chá
Reading A: qǐng géi wǒ yì bēi chá
Reading B: qíng géi wǒ yì bēi chá
From Dictionary example: 茶
What the checker changes
A citation reading is the pinyin a dictionary prints. Connected speech can change the tone you actually say: the first of two third tones rises; 不 changes before a fourth tone; and 一 changes according to the tone after it. The checker changes only those three mechanical cases.
It does not infer syntax. That matters when three or more third tones touch: different grammatical groupings can produce different readings. Rather than make a plausible-looking guess, the result shows both groupings and leaves the choice unresolved. Half-third-tone pitch is also not rewritten as a new pinyin tone because it is a phonetic realization, not a change of tone category.
Questions people ask
Why does written pinyin not show tone sandhi?
Pinyin normally records the citation tone — the word's dictionary form. Connected speech can change what is said without changing how the word is written.
What happens with three third tones in a row?
The result depends on how the words group grammatically. This checker labels the run ambiguous and displays both groupings; it never quietly selects one.
Is my text stored?
No. The POST is processed for this response and is not saved, and the text is never copied into the URL.
How does the audio work?
Nothing is synthesized when the page loads. Pressing Play sends that connected reading to /api/audio/word. Longer readings keep their written analysis but get no button, matching the endpoint's 100-character cost guard.
Practise what you found
- Play Sandhi Sprint to hear real words and choose the tone pair people actually say.
- Read the tone-sandhi rules and the reasons behind them.
- Train tone pairs by ear after seeing which pair changed.
- Compare one spoken syllable with its target contour.
- Shadow a whole sentence against a model recording.
- Put citation pinyin above a longer Chinese passage.