nearly ...when与 scarcely when hardly when no sooner than 区别

nearly ...when与 scarcely when hardly when no sooner than 区别
I had nearly reached the down ,when the young mansuddenly said,.这个句子里的nearly 可以换作 scarcely 或者 hardly吗 或者使用 no sooner than的形式呢?nearly 可以前置然后倒装吗 比如 nearly had I reached.
scarcely when hardly when no sooner than 这几个结构在语境还是有区别的吧 我个人感觉都简单理解为 一.就.也不是很合适.scarcely 是不是语气更强烈一些呢 no sooner语气稍淡?