Learn what "i don't know" means, when people say it, and how to use it naturally in English.

The speaker is unsure whether the person understands a serious hidden danger.
From The Pendleton Secrete, Episode 11
The speaker says they are unsure whether Mr. Pendleton knows his family may be poisoning him.
Use this when you are uncertain about what someone knows or realizes. The full line is too specific and dark for a reusable phrase page.
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