What Is Their Main Difference?
As stated above, 'maybe' is an adverb of probability. It indicates the possibility of an event. Look at the examples below:
'May be', contrariwise, consists of two verbs. It includes the modal verb 'may' plus the base for of the verb 'to be'. It indicates the possibility of action. Check out the examples below:
I said he
As I mentioned above, we can use both to refer to possibilities. Look below:
The accused confidently announced that she
We could all
Are They Interchangeable?
It is obvious that we cannot use these two terms interchangeably because our sentence will be grammatically incorrect. One functions as an adverb, whereas, the other one consists of two separate verbs. Compare:
As you can see, this one is grammatically incorrect.