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!

chā, chá, chǎ, chà

first tune

chā

fork 叉 chā

fork 叉子 chā zi
fork 叉 chā	suffix 子 zi

stick into; insert; interject 插 chā

interrupt (someone while they are speaking) cut in; break into a conversation 插嘴 chā zuǐ
interject 插 chā	mouth 嘴 zuǐ

flower arranging 插花 chā huā
stick into; insert 插 chā	flower 花 huā

Chinese characters also pronunced chā

second tune

chá

tea 茶 chá

drink tea 喝茶 hē chá
drink 喝 hē	tea 茶 chá

observe; investigate 察 chá

police 警察 jǐng chá
caution; warn 警 jǐng	investigate 察 chá

Chinese characters also pronunced chá

fourth tune

chà

branch off 岔 chà

side road 岔路 chà lù
branch off 岔 chà	road 路 lù

Chinese characters also pronunced chà