may not know

USAGE SUMMARY

The phrase "may not know" is correct and usable in written English.
It can be used to indicate uncertainty about someone's knowledge or awareness of a particular fact or situation. Example: "Some people may not know that the event has been rescheduled for next week."

✓ Grammatically correct

News & Media

Academia

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Turandot may not know this.

The New York Times - Arts

He may not know himself.

The New York Times - Arts

You may not know it.

Harvard University

You may not know that.

Yale University

They may not know another gay person.

The New York Times

They may not know themselves.

The Washington Post

"You may not know why".

The New York Times

O'Neill himself may not know.

The New York Times - Magazine

In fact, they may not know it.

The Washington Post

He may not know it himself.

The Guardian

We may not know it happened.

The New York Times

Expert writing Tips

Best practice

Use "may not know" to express a possibility of someone lacking knowledge, rather than a certainty. It's suitable when you're unsure if the person is aware or not.

Common error

Avoid using "may not know" in situations where you're certain the person is aware. It can come across as condescending or dismissive. If you know they know, use a different phrasing.

Linguistic Context

The phrase "may not know" functions as a modal verb phrase expressing epistemic possibility. It indicates that it is possible, but not certain, that someone lacks knowledge about something. Ludwig confirms its widespread use in expressing uncertainty.

Expression frequency: Very common

Frequent in

News & Media

39%

Academia

32%

Wiki

15%

Less common in

Encyclopedias

3%

Formal & Business

0%

Science

0%

Ludwig's WRAP-UP

The phrase "may not know" is a versatile modal verb phrase used to express uncertainty regarding someone's knowledge. As Ludwig AI indicates, the phrase is grammatically sound and enjoys widespread use. It's particularly common in news media and academic writing, but also appears frequently in more informal contexts like wikis. While semantically similar phrases such as "might be unaware" and "could be ignorant of" exist, "may not know" offers a balanced tone suitable for various situations. When using this phrase, remember that it suggests a possibility, not a certainty, and should be avoided if you are sure about the other person's knowledge. This review provides a detailed analysis, usage examples, and helpful writing guidance, ensuring confident and accurate application of the phrase.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

might not realize

Focuses on a lack of realization or understanding.

might be unaware

Uses a different modal verb and expresses a lack of awareness more directly.

might be uninformed about

Highlights a lack of information as the cause of not knowing.

may lack awareness of

Directly states a deficiency in awareness.

could be ignorant of

Emphasizes a lack of knowledge, often implying a lack of information.

could be in the dark about

Idiomatic expression indicating a complete lack of knowledge.

may be oblivious to

Suggests a lack of awareness despite the information being available.

could fail to recognize

Emphasizes the inability to identify or understand something.

might not perceive

Focuses on a lack of sensory or intuitive understanding.

might be unacquainted with

Suggests unfamiliarity with a subject or topic.

FAQs

How to use "may not know" in a sentence?

Use "may not know" to express a possibility that someone lacks awareness or understanding of something. For example, "They "may not know" the full extent of the problem" suggests uncertainty about their knowledge.

What can I say instead of "may not know"?

You can use alternatives like "might be unaware", "could be ignorant of", or "might not realize" depending on the context.

Is it better to say "may not know" or "might not know"?

Both "may not know" and "might not know" are grammatically correct and express a similar meaning. "May" implies a slightly higher degree of possibility compared to "might", but the difference is often negligible.

What's the difference between "may not know" and "does not know"?

"May not know" expresses uncertainty about someone's knowledge, while "does not know" states a definite lack of knowledge. "He "may not know"" suggests a possibility, whereas "He does not know" is a statement of fact.