【一】She stuck to her story about the money already being missing when she got there. 她坚持说她到那儿时钱就已经不见了。

对于上面这个例句，我有以下3个疑问点：

【1】句中的being missing如何理解？

解答：the money already being missing 为动名词复合结构作介词about的宾语，the money为动名词逻辑主语，already为动名词的状语。

以上句子语法结构分析如下

She【主语】// stuck to【谓语动词】// her story【宾语】// about the money already being missing【后置定语】//when she got there【时间状语】. 

【2】本句中通过使用名词性短词作为介词的宾语来把动词弱化成名词。我尝试着把这句话改写成这样：

She insisted that the money was missing when she got there.

请问这与原句的意思相同吗？还有，这里的was missing中的missing是看作形容词表示丢失的状态对吗？

解答：以上可以改为insist that宾语从句，missing为形容词，找不到的；不在的；失踪的;丢失的

【3】请问以下两个句子有什么区别:

(1) She insisted that the money had gone when she got there.

备注：宾语从句使用过去完成时态，表示钱在她达到之前就已经不见了。

(2) She insisted that the money was missing when she got there.

备注：宾语从句使用一般过去时态，表示钱在她达到的时候不见了。