The Problem:
* "You of known better" is grammatically incorrect. The phrase "of known" doesn't make sense in English. We need to use a verb in the past tense, and the correct construction is "you should have known better."
The Corrected Sentence:
"I should not have eaten that candy, or you should have known better."
Explanation:
This sentence uses correct grammar and clarifies the meaning.
* "I should not have eaten that candy" is a grammatically correct statement expressing regret.
* "You should have known better" is also grammatically correct and implies that the listener should have known to advise against eating the candy.
The corrected sentence maintains the meaning of the original sentence while adhering to proper grammar.