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!

mōu, móu, mǒu, mòu

second tune

móu

plan; scheme; strategy 謀 móu

conspiracy; secret scheme 陰謀 yīn móu
hidden 陰 yīn	scheme 謀 móu

Chinese characters also pronunced móu

third tune

mǒu

some; certain 某 mǒu

certain person somebody; someone 某人 mǒu rén
some; certain 某 mǒu	person 人 rén