In the Chinese Pinyin system, the tone mark must be placed on the main vowel of a syllable according to specific rules. The priority order for placing the tone mark is as follows:
Examples:
cā, gāi, xiá, miào, fǎ, gē, mén, bèng, tōng, fǒu, yǐn, xù, cún, pīng.
For syllables ending in 'iu' or 'ui', the tone mark should be placed on the last vowel:
cuī (催, urge) | qiú (求, request) | xiù (秀, elegant) | duì (对, correct)
When the tone mark falls on the vowel 'i', the dot above 'i' is omitted to make room for the tone mark:
cuī, yǐn, duì, pīng.
Syllables pronounced in a neutral tone do not carry a tone mark:
☞ zhuōzi (桌子, table)
☞ wǎnshang (晚上, evening; night)
☞ luóbo (萝卜, radish)
This systematic approach ensures that Pinyin accurately represents the pronunciation of Mandarin Chinese while maintaining clarity and consistency. By following these tone mark placement rules, you can write Chinese Pinyin correctly and avoid common mistakes.