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!

dēi, déi, děi, dèi

third tune

děi

must; need 得 děi

must; have to 總得 zǒng děi
always 總 zǒng	must 得 děi

must live a life 總得生活 zǒng děi shēng huó
must; have to 總得 zǒng děi	live a life 生活 shēng huó