Not until half an hour later.You must come home with me now.

知道一个半小时后,才. 你现在必须和我一起回家.
句型1.It was not until sb1 did...that sb2 did...
eg. It was not until you came back that I went to bed.知道你回来我才去睡觉.
句型2(为句型1的倒装句)Not until sb1 did...,did sb2 do...
eg. Not until you came back,did I go to bed.
再如,It was not until midnight that I fall asleep.
Not until midnight did I fall asleep.
句型3,这个句型比较简单,也是最口语化的
主语+didn't+do+until...
eg.I didn't fall asleep until midnight.
I didn't go to bed until you came back
这些都是我从我的笔记本上抄下来的,比较精华哦,前2个比较难几,容易忘,多记几遍,前2个句型是最重要的.是考试的重点