Maybe or may be ?

Maybe as an adverbMaybe /ˈmeɪbi/ is an adverb and it means the same as perhaps. It is written as one word:

Maybe no one will come to the party.

Not: May be no one will come to the party.

Spoken English: In speaking, we sometimes use maybe at the end of what we say when we are making a suggestion which we are not very certain about:

A:There’s something wrong with my PC. I can’t load my photos.

B:It could be a virus, maybe.

Spoken English: In speaking, we can use maybe as a response when we agree that something is possible:

A:Ronnie and Linda are going to leave New Zealand in January.

B:Why? I thought they were very happy there.

A:I’m not sure. Perhaps they feel a bit lonely.

B:Maybe.

We can also use maybe to express uncertainty in response to a suggestion:

A:Would you like to have chicken curry for dinner?

B:Maybe.

A:You don’t sound very enthusiastic.

B:I just can’t think about dinner right now. I’ve just had breakfast.