1、May作可以来讲时,它的否定式为must not(不准)或may not(不可),如果May作或许讲时,表示可能性,其否定式may not作也许不来讲
2、may可用于目的从句,如ca水瑞侮瑜bles are usually laid underground that their life may be prolonged,将电缆埋在地下,是为了延长使用年限
3、may也可用以让步从句,如we must fulfill our task, however difficult it may be无论我们的任务如何艰巨,我们一定要完成它
4、may+have+过去分词表莲镘拎扇示现在对过去事物的推断,如they may have left yesterday他们可能昨天已经走了,需要注意如果用mi爿讥旌护ght或could替换上去的may,则意思变成了昨天他们本来是可以走的
5、may+well+动词句型中,well可当有充分理由去理解,如he may well be proud of his success他有理由为他的成功而自豪
6、主语+may as well+动词+比喻体+动词原形+本体,一般可译为不妨,不如。如she may just as well go home as not她最好是回家去