There were emerged threats to their safety and particularly the safety of our children.

英訳に間違いが有れば正してください。

彼らの安全、特に私たちの子供たちの安全に対する新たな脅威があった
There were emerged threats to their safety and particularly the safety of our children.

答え emergedをemergingにする

There were emerging threats to their safety and particularly the safety of our children.

emerging
名詞を形容する現在分詞で現在(現れた)の意味を表す