might have been 和 cound have been的区别

might have been 和 cound have been的区别 might be和 may have been的区别?还有是might do和 may have done He may have been busy和He might be busy请问它们的区别?may have been 和might be的区别?请问? Hardware changes might not have been detected as might be expected的用法as might be expected和as might have been expected的意思一样吗?be 可换成（is am are）吗？ I might have I might have been hallucinating.请问诸位,这是什么结构的句子啊 i might have been in love before 翻译中文 I might have been in love before是什么歌 I'll never long for what might have been Never benever seewon't see what might have been意思 翻译：The outcome might have been more positive. someone you might have been翻译版大大还有吗? The consequences might have been much more serious句中have been 是什么? If you hadn't been more careful,you might have been knocked down by a car,这里用might是不是和用would或should 一样,还是有什么区别 have since been 和 have been since have been 和have ever been区别! might have might have