L1p34

Rules of the Pinyin (phonetics)<2>

1. when two vowels come together, the tone mark is put on the top of the vowel “a”.

For example:

xiàn     

zhuāng     

2. If there is no vowel “a”, the tone mark is put on the top of vowel “e” or “o”.

For example:

liè     

kǒu     

3. If the vowels “i” and “u” come together, the tone mark is put on the top of the last one.

For example:

liù     

tuī