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
Click the framed calligraphic Chinese symbol icons
to link more related multi-character Chinese words!

bī, bí, bǐ, bì

first tune

bī

force to; compel to 逼 bī

force to; compel to 逼迫 bī pò
force to 逼 bēi	compel 迫 pò

second tune

bí

nose 鼻 bí

nose 鼻子 bí zi
nose 鼻 bí	suffix 子 zi

Chinese characters also pronunced bí

third tune

bǐ

compare 比 bǐ

compare 比較 bǐ jiào
compare 比 bǐ	compare 較 jiào

pen; writing instrument 筆 bǐ

Chinese writing brush 毛筆 máo bǐ
compare 毛 máo	hair 筆 bǐ

Chinese characters also pronunced bǐ

fourth tune

bì

accomplish; finish 畢 bì

graduation 畢業 bì yè
accomplish; finish 畢 bì	business, profession 業 yè

avoid; evade 避 bì

dodge; elude 躲避 duǒ bì
avoid; hide oneself 躲 duǒ	avoid; evade 避 bì

close; block up 閉 bì

close down; shut down 關閉 guān bì
close 關 guān	close; block up 閉 bì

Chinese characters also pronunced bì