maybe和may be的区别有词性不同、用法不同、意思不同等。
1、词性不同
maybe是副词，意为“大概，或许，可能”，通常用于不确定、提出建议、赞同并补充信息的情况。而may be中may是情态动词，be是动词原形，两者构成完整的谓语形式。译为“多半、可能”，但在具体使用时，可表示相近的意思，比如：Maybe you are r ight.
2、用法不同
maybe指某事也许如此，含不能确定意味，maybe比perhaps更口语化，且要用于句首；may be，may是个情态动词，无不定式和分词形式，第三人称单数现在时也无变化。
3、意思不同
maybe意思是大概，或许；may be意思是多半，可能是。
maybe双语例句：
1、Maybe he'll come, maybe he won't.
他也许来，也许不来。
2、Let's eat now and maybe we could catch a movie later.
咱们现在就吃，说不定吃完能赶场电影。
3、There is only one difference between an old man and a young one: the young man has a glorious future before him and the old one has a splendid future behind him: and maybe that is where the rub is.
老年人和青年人只有一个区别：青年人有光辉灿烂的前景，而老年人的辉煌已成为过去。问题的症结恐怕就在这里。
4、Doctor Winter went to the window and squinted up at the sky, and he said, " It's a big cloud, maybe it will pass over."
温特医生走到窗前，他眯着眼看天，他说：“这是一大块云，也许就会过去的。”
5、Maybe it was thoughtless of me.
或许是我粗心了。