I warned him again and again, but he would not listen to me.

我一再地警告他，但是他不听我的。

youdao

I warned him that it will bring him nothing but trouble.

我警告过他这只会带给他麻烦。

youdao

I warned him that it will bring him nothing but trouble.

我警告过他这只会带给他麻烦。

youdao