Was that the idea you had ,when we ...分析句子

题目

Was that the idea you had ,when we ...分析句子
“Was that the idea you had ,when we started out with Tom "
that the idea you had 为主语
when we...为状语从句
是这样吗
句末我漏了个?号 就看不出是 Is it 这结构的问句了?

答案

这就是一般疑问句
后面when是时间状语从句可以先不看
陈述句是
that was the idea( you had） ,when we started out with Tom
you had 是定语从句修饰the idea
变成一般疑问句 就是 上面的形式