请教needn't have ,don't have to是什么意思?
问题描述:
请教needn't have ,don't have to是什么意思?
You needn't have waken me up,I (don't have to)go to work today.
1.请问needn't have 是什么意思?don't have to是什么意思?
2.这里为什么不能用haven't to,而要用don't have to?
答
needn't have to是本不必做而做了,是虚拟语句don't have to是没必要去做某事