还没来得及的英文

before sb could do sth ,sb V-ed 我还没来得及跟他解释原因，他就冲出了教室。Before I could explain the reason to him, he rushed out of the classroom.她还没来得及说谢谢，他就从棚顶溜下去，迅速消失在黑暗中。Before she could thank him, he got down from the shed roof and ran off through the darkness.当他还没来得及安排，就得到电报说他父亲已经去世了，并将所有的财产留给了他儿子。Before he could make the arrangements, he received a telegram telling him his father had passed away, and willed all of his possessions to his son.

no sooner thanhardly when

not yet

He had gone out before I could say anything.其实before的基本意思还是“在……之前”抓住基本意思不动摇，在具体语境灵活翻译就行了。