hardly 是副詞，意思是 "幾乎不"；hard 也可是副詞，意思是“努力地”：
hardly 位于句首時(shí)，句子要用倒裝：
hardly 常用于 hardly had...when 結(jié)構(gòu)，翻譯為“剛…就…”，表示一件事緊接著一件事發(fā)生，與過(guò)去完成時(shí)連用。when 引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，主句一般用過(guò)去完成時(shí)，從句用一般過(guò)去時(shí)。hardly 置于句首時(shí)，助動(dòng)詞 had 要放在主句的主語(yǔ)前。
Hardly had I arrive at the railway station when the train started. 我一到火車(chē)站，火車(chē)就開(kāi)走了.
沒(méi)有 when 時(shí)，hardly 翻譯為“幾乎不”
Hardly had I believe what you said. 我?guī)缀醪幌嘈拍阏f(shuō)的話.
句子中有 hardly 時(shí)，其反意疑問(wèn)句的疑問(wèn)部分應(yīng)該用肯定形式：
He can hardly understand it, can he? 幾乎聽(tīng)不懂，不是嗎?