He didn”t go to bed until / till eleven last night.

昨天夜里他直到十一点才上床睡觉。

She didn”t know me until / till last week.

她直到上一周才认识我。

Einstein was not able to return to his homeland until the war was over.

直到战争结束后爱因斯坦才得以回国。

注意：

not until放在句首时要用倒装语序，如上面第三个例句可以改为放在句首的倒装句：Not until the war was over was Einstein able

to return to his homeland.

3)如果要放在句首，只能用until而不能用till，如：

误：Till I finished my homework, mother didn”t let me out.

正：Until I finished my homework, mother didn”t let me out.

直到我做完家庭作业妈妈才准我出去。

4)强调结构中也常常出现not until结构，常见句型为：It is / was not until…that。如下面这个句子：

She didn”t find me until I called her from behind.

直到我从后面叫她之后，她才发现了我。

改为强调结构：It was not until I called her from behind that she found me.

注：但在强调句型中，not until置于句首构成倒装句以及until放在句首时，均不能用till替换until。例如：

It was not until 1920 that regular radio broadcast began.