It's very simple Maybe = perhaps May be = is possibly Our college was sick yesterday so he may be absent from work today. Maybe our meeting will be postponed until he comes back. you may be creative or maybe you are just crazy.

Maybe is an adverb that means perhaps or possibly. Maybe you will like it. [Perhaps you will like it.] Maybe it will rain. [Perhaps it will rain.] May be is a verb phrase that means something might be true. 'May' in this case is a modal verb and it behaves in exactly the same way as 'will'. He may be French. [He could be French.] I may be late. [I could be late.] May is a modal verb and it can be used with any verb (not just 'be'). It may rain. compare with: It will rain. It won't rain. He may be American. Compare with: He is American. He isn't American. I'm not sure if this is clear, so let me know if you still don't understand :)

"Maybe" is an adverb, and a shortened form of "it may be (that)..." It means "perhaps". "May be" is part of the actual statement - the "be" functions as the main verb. "I may be accepted into the course, so maybe I'll get a call or a letter." "I maybe accepted" gives a completely different meaning to "I may be accepted". "May be I'll get a call" is wrong. "May be" needs a subject, eg. "It may be that I'll get a call."