The following video demonstrates each syllable of the pinyin structure
and the exercise of pinyin/zhuyin with basic Chinese 4-tune pronunciation

Mandarin pinyin tunes
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to link more related multi-character Chinese words!

bēn, bén, běn, bèn

first tune

bēn

run; move quickly 奔 bēn

run quickly 奔跑 bēn pǎo
run 奔 bēn	run 跑 pǎo

Chinese characters also pronunced bēn

third tune

běn

original; principal 本 běn

ability of a person 本事 běn shì
original; principal 本 běn	matter; business 事 shì

Chinese characters also pronunced běn

fourth tune

bèn

foolish; clumsy 笨 bèn

idiot; stupid fellow 笨蛋 bèn dàn
foolish; clumsy 笨 bèn	egg 蛋 dàn