Sentence examples for a very dangerous boy from inspiring English sources

The phrase "a very dangerous boy" is correct and usable in written English.
It can be used to describe a boy who poses a significant threat or risk, either in behavior or actions.
Example: "The neighborhood was on high alert due to reports of a very dangerous boy who had been causing trouble at the local park."
Alternatives: "an extremely risky boy" or "a highly perilous boy".