not until 与until的问题，疑惑，请高人帮忙，谢谢谢谢啦

until 和not until 都是“直到···才”
1.until和延续性动词连用
I sleep until my mother comes back
我一直睡到我妈妈回来（sleep是延续性动词）

2.not until 和短暂性动词连用
I didn't go to bed until my mother came back
直到我妈妈回来我才去睡觉（go to bed 短暂性动词词组）

3.延续性动词也可以和not until 连用，但意思大不同
I don't sleep until my mother comes back
直到我妈妈回来才睡觉（和1做对比）

所以你的那两个句子是不可以互换的
You cann't go until I arrive
go是短暂性动词只能用not until

not until 和until的区别用法主要是放在句首的时候 not until 在句首时后面要倒装 如：Not until late at night did he returned. until在句首时跟它放在句中时都是一样的 如：Until I arrive, you can't left.=You can't left until I arrive.

you can go until I arrive----not correct. you can go when i arrive--- correct. don't leave until i arrive = you can go when i arrive.