"Undertaken" seems like a wrong word, but it is hard to tell what you mean. "
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"Undertaken" seems like a wrong word, but it is hard to tell what you mean. Maybe "The government should be petitioned to alter the law."
cpu fuchsia 204 The government should be undertaken to alter the law.
I think you're using the passive voice where you intend the meaning of the active.
The government should undertake to alter the law.
More naturally,
The government should change the law.
CJ