Context: She always speaks ill of her neighbors.
1. Her neighbors are always spoken ill of by her.
or
2. Her neighbors are always ill spoken of by her.
Both are horrible and wouldn't be uttered by any native English speaker.
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Both are horrible and wouldn't be uttered by any native English speaker.
to speak ill of someone is a idiom.
Idioms are always used with the same word order and same word choice. That means you can't substitute synonyms or change the word order and still have the same idiom. You end up with nonsense if you try that. That means you can't put this idiom in the passive voice.
Here's another one:
to kick the bucket means to die.