наверное vs может быть

navernoye vs mozhet byt' — probably vs maybe/perhaps

What it really means

Наверное means probably and usually presents the speaker's inference with moderate confidence. Может быть means maybe/perhaps and more openly leaves alternatives possible; literally it is “it may be.” In many contexts both translate as perhaps, but probably often sounds more committed.

Intonation and evidence affect the strength, so neither word guarantees a precise probability.

Examples in natural speech

Наверное, он уже дома.
He is probably home already.
Она, наверное, занята.
She is probably busy.
Может быть, пойдём пешком?
Maybe we should walk?
Может быть, я ошибаюсь.
Perhaps I am mistaken.
Наверное, завтра будет снег.
It will probably snow tomorrow.

Common mistakes

Do not write можетбыть as one word. Avoid treating наверное as certainty; use наверняка when the context supports “surely.”

Memory tip

Наверное leans toward a conclusion; может быть leaves the door more open.

Frequently asked questions

Which is closer to probably?

Наверное.

Which is closer to maybe?

Может быть.

Are commas needed?

They are often set off as introductory words, though punctuation depends on syntax and style.

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