Tone Marks
First ā
Second á
Third ǎ
Fourth à
Neutral a

Pinyin and Characters

Pinyin use the tone marks to indicate the corresponding characters. More than one character can be in the same form of Pinyin, with the same tone marks.

References and Sources 参考和来源 (cānkǎo hé láiyuán)

Learning Basic Chinese 学基本中文 (xué jīběn zhōngwén)

Pinyin 拼音 (pīnyīn)

Basic Chinese Characters 基本汉字 (jīběn hànzì)