前置詞＋名詞をwhen, where, how, why, thatという一語で置き換え、それを先頭に移動させる
He was born in the village. → the village where he was born 前置詞 in は省かれる
He was born on the day. → the day when he was born 前置詞 on は省かれる
You cannot consent for the reason. → Tell me the reason why you cannot consent.
✖️That is the way how he accomplished it.
先行詞 the way と 関係副詞 how はどちらかを省略しないといけない
That is the way he accomplished it.
That is how he accomplished it.