语法学习技巧|牛津实用英语语法 149 表示无义务的各种形式

但,关于needn't在间接引语中的使用方法,参见上面第148节C。

shan't/won't need to=shan't/won't have to

don't/doesn't need to=don't/doesn't have to

didn't need to= didn't have to(但 didn't have to更容易见到)

从上面的表格中可以看出,与haven't/hasn't got1 to和 hadn't got to完全同义的 need的形式是没有的。