Question

could be和might be有什么区别？

Answer 1

　　might be 多用于过去时,另外,它表示的可能性较小,说话人多半抱着猜测和不确定的心理.
例句：If you can't do this on your own,it might be hard for him.
如果你不能自己应付这个的话,他可能会很辛苦.

　　may be和maybe它们的含义和用法不同.
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,与主语形成系表结构,意为“也许是、可能是”.
He may be a teacher.他可能是个老师
maybe是副词,意思是“也许、可能”,在句中作状语,相当于perhaps,常位于句首.
Maybe he will go to the hospital.也许他会去医院.
maybe和may be可相互转换.
You may be right.
= Maybe you are right.你或许是对的.
maybe是副词,“也许,可能”,“大概”,用法很简单,常用于句子开头,有时后边紧接着加一逗号,与后面的句子分开.表示一种可能性?可能发生某事（可能是这样）,或可能不发生某事（可能不是某种情况）.
例句：
1.He has been ill for 3 days .He may be fine now .
2.He has been ill for 3 days .Maybe ,he is fine now .
3.Maybe he will come ,maybe he won’t .