before doing除了before还有什么类似的?

before doing除了before还有什么类似的? BEFORE DOING和AFTER before doing和before to do before Before Before before doing sth 和 before you do sth,为什么? before后面必须跟doing吗? before doing sth还是do sth 英语翻译He always consulted before doing anything. 【改为祈使句】Could you make a wish before doing that?.-- -- a wish before doing that! help,open的过去分词是什么?是before sb do sth.还是before sb doing sth... before doing sth before making a decision,think it over.为什么用making? long before和before long before 和before long before和before before sb doing还是do sth如题``` are we doing a before and after piece