使不得 [－－－]

Jyutping sai2 bat1 dak1
Pinyin shǐ bù dé

Definitions (Wiktionary)
  1. verb
    may not; cannot
    (syn.) 𫧃用得, 𣍐做, 𣍐用, 𣍐使, 𫧃使, 𣍐使得, 𣍐用得, 𫧃做, 𫧃用, 不可以, 𫧃使得, 唔可以
  2. verb
    to be no longer usable

使不得 [－－－]

Jyutping sai2 bat1 dak1
Pinyin shǐ bu de

Definitions (CC-CEDICT)
  1. cannot be used
  2. must not (do sth)
  3. unacceptable
Definitions (Wiktionary)
  1. verb
    may not; cannot
    (syn.) 𫧃用得, 𣍐做, 𣍐用, 𣍐使, 𫧃使, 𣍐使得, 𣍐用得, 𫧃做, 𫧃用, 不可以, 𫧃使得, 唔可以
  2. verb
    to be no longer usable