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!

guō, guó, guǒ, guò

first tune

guō

wok; pan; cooking pot 鍋 guō

hot pot (Chinese cuisine) 火鍋 huǒ guō
fire 火 huǒ	cooking pot 鍋 guō

Chinese characters also pronunced guō

second tune

guó

nation; country 國 guó

patriotic; love one's country 愛國 ài guó
love 愛 ài	nation; country 國 guó

Chinese characters also pronunced guó

third tune

guǒ

fruit 果 guǒ

fruit (can be eaten as food) 水果 shuǐ guǒ
water 水 shuǐ	fruit 果 guǒ

karma; cause and effect 因果 yīn guǒ
cause; due to 因 yīn	fruit 果 guǒ

Chinese characters also pronunced guǒ

fourth tune

guò

pass; go across fault; mistake 過 guò

pass (the test) 通過 tōng guò
unobstructed 通 unobstructed	pass 過 guò

fault; mistake 過錯 guò cuò
fault; mistake 過 guò	wrong; mistake 錯 cuò

miss (the chance, opportunity) 錯過 cuò guò
mistaken 錯 cuò	pass 過 guò