How to write f in the pinyin grid:

Below the center line, the upper square is not on top of the line, and the middle square must be full.

All pinyin written within four lines and three spaces::

1. Pinyin classification:

24 finals:

Single 6 finals: a o e i u ü

9 compound finals: ai ei ui ao ou iu ie ue er

5 nasal finals: an en in un ün

Four back nasal vowels: ang eng ing ong

Overall pronunciation: zhi chi shi ri zi ci si yi wu yu ye yue yuan yin yun ying (whole pronunciation is different from incomplete pronunciation)< /p>

23 initial consonants:

b p m f d t n l g k h j q x zh ch sh r z c s y w

2. Writing formula: