He pondered for several minutes before (making) a decsion.问making的语法?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maki

He pondered for several minutes before (making) a decsion.问making的语法?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maki
He pondered for several minutes before (making) a decsion.问making的语法?
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.问making的语法?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maki
before可作介词或连词.
当作为介词时,后加名词、动名词或代词.如
He spent his early life in Sri Lanka before moving to England...
在移居英格兰之前,他早年是在斯里兰卡度过的.
Annie was born a few weeks before Christmas...安妮出生在圣诞节前几周.
当作为连词时,后加句子.如
Before Gallacher could catch up with the ball,Nadlovu had beaten him to it.加拉赫还没来得及追上球,纳德洛武就已经抢先一步触到球了.
注：还能作副词,由于与本题无关,不再说明.