may have been和might have been之间是否存在细微的语义差异?

母语人士的回答
Rebecca
一般来说,两者可以互换使用!但是,根据音色的不同,会有一些差异。 May have been比might正式一点,给人一种确定的感觉, might have been真的传达了一种不确定的语气。示例: I'm sorry I missed your call. I may have been at the store then. (抱歉没接电话。我想我当时在商店。) 示例: Jane might have received the parcel, but I'm not too sure. (我认为 Jane 收到了包裹,但我不确定。) 示例: People might have been nervous to go on the new ride. = People may have been nervous to go on the new ride. (人们可能对新游乐设施有点紧张。)