“we needn't have said that,”he answered.为什么句中said不用原型,之前不是有情态动词nees吗.
问题描述：
“we needn't have said that,”he answered.为什么句中said不用原型,之前不是有情态动词nees吗.
答
needn't have done 为虚拟语气 表对过去的看法 本不必要做