Chris The Story Reading Ape's Blog
on Just Publishing Advice:
When do you use maybe or may be?
These two parts of speech often cause confusion, but it’s quite easy to get them right.
The key is to remember that maybe is an adverb and may be is a verb phrase. It uses a modal verb plus a verb.
As long as you know when you are using an adverb instead of a verb phrase, you can be confident about your writing.