He pondered for several minutes before (making) a decsion.making的语法结构?He pondered for several minutes before( he made) a decision.He pondered for several minutes before (making) a decsion.请问第二句直接介词before直接用动名词m

He pondered for several minutes before (making) a decsion.making的语法结构?He pondered for several minutes before( he made) a decision.He pondered for several minutes before (making) a decsion.请问第二句直接介词before直接用动名词m
He pondered for several minutes before (making) a decsion.making的语法结构?
He pondered for several minutes before( he made) a decision.
He pondered for several minutes before (making) a decsion.
请问第二句直接介词before直接用动名词making是一种什么语法结构?如果是主动就用动名词表示?如果被动就用made 很多定语从句省略连接词时也是这么用的,但具体语法名称叫什么?

He pondered for several minutes before (making) a decsion.making的语法结构?He pondered for several minutes before( he made) a decision.He pondered for several minutes before (making) a decsion.请问第二句直接介词before直接用动名词m
before的两种词性,第一句话中是连词（在.之前）,后面跟了一个时间状语从句he made a decision.因为主句是过去时,所以从句也对应用过去时.第二句中before是介词,介词后面要加名词性结构,make是动词原形,所以making a decision可以看做是名词性结构