may be

基本解释

They may be in for some bad weather.
他们可能会遇到一些坏天气。
The news may be unexpected; nevertheless, it is true.
这消息可能是出乎意料的，然而是真实的。
《新英汉大辞典》
Even the ideal dog may be put down if it is not shown in perfect condition.
即使是理想的狗，如果不能以最佳的竞技状态参展，也有可能被淘汰。

The female is much smaller. Institute director Steven Monfort has a reason why the clouded leopard may be rare.
What may be most important here is the mere fact that Milton is expressing these political convictions at all.
这里最重要的不过是,弥尔顿只是在表达他的政治信念。
耶鲁公开课 - 弥尔顿课程节选
They may do it in different forms; they may make mistakes; they may be mistaken about where God resides.
他们可能以不同的方式实践，也可能会犯错误;,可能会误解了上帝的存在。
耶鲁公开课 - 1945年后的美国小说课程节选

They have been believers for a while now, and someday they may be justified.
FORBES: A Child's Guide To ImClone

You use maybe to express uncertainty, for example when you do not know that something is definitely true, or when you are mentioning something that may possibly happen in the future in the way you describe.
You use maybe when you are making suggestions or giving advice. Maybe is also used to introduce polite requests.
You use maybe to indicate that, although a comment is partly true, there is also another point of view that should be considered.
You can say maybe as a response to a question or remark, when you do not want to agree or disagree.
You use maybe when you are making a rough guess at a number, quantity, or value, rather than stating it exactly.
People use maybe to mean "sometimes," particularly in a series of general statements about what someone does, or about something that regularly happens.