かもしれない means might; perhaps. It is a JLPT N4 Japanese grammar pattern used to show that something is possible but not certain.
This grammar point often appears in conversation, written explanations, formal notices, and JLPT-style reading questions. If you want to show that something is possible but not certain, かもしれない is a useful pattern to learn after the N5 basics.
What does かもしれない mean?
Use かもしれない when you want to show that something is possible but not certain.
Natural translations include:
- might
- perhaps
- might; perhaps
The exact English translation changes with context. Focus on what the grammar point does in the sentence first, then choose the English phrase that sounds natural.
How to form かもしれない
Plain form + かもしれない
Examples of the pattern:
- 雨かもしれない
- 行くかもしれない
- 高いかもしれない
Pay attention to the word form before the pattern. Many JLPT N4 mistakes happen because the meaning is understood, but the grammar is attached to the wrong form.
When is かもしれない used?
Use かもしれない in situations like:
- explaining a condition, reason, decision, or time relationship
- making a sentence more specific than a basic N5 pattern
- understanding natural Japanese in conversation or reading
Tone and register:
- neutral unless the grammar itself is marked as casual, humble, honorific, or formal
- Common in daily speech, textbook examples, and JLPT N4 reading questions
かもしれない example sentences
- 明日は雨かもしれません。 — It might rain tomorrow.
- 田中さんは来ないかもしれません。 — Tanaka might not come.
- この問題は難しいかもしれない。 — This problem might be difficult.
- 彼はもう帰ったかもしれません。 — He may have already gone home.
- 少し高いかもしれません。 — It might be a little expensive.
Read the Japanese sentence first, then check the English translation. Try to notice what the grammar point contributes: condition, timing, limitation, possibility, decision, politeness, or emphasis.
Nuance of かもしれない
The key nuance is expresses weak possibility rather than a prediction.
This matters because かもしれない may look simple in English, but the Japanese form tells you whether the speaker is describing a time, a condition, a decision, a possibility, or a social relationship.
For example:
- In context, かもしれない helps make the sentence more precise than a direct English translation.
- Compared with でしょう, it has a different focus even when both patterns appear in similar sentences.
かもしれない vs でしょう
Both {jp} and {similar} can appear in related sentences, but they are different.
かもしれない:
- is the target JLPT N4 pattern in this lesson
- carries the specific nuance explained above
でしょう:
- is useful for comparison because learners often mix it up
- may use a different form, tone, or sentence focus
Quick contrast examples:
- Target pattern: 明日は雨かもしれません。 — It might rain tomorrow.
- Related pattern with でしょう: compare the form and ask whether the sentence is about timing, condition, ability, decision, or politeness.
If you are unsure which one to use, identify the main job of the sentence before translating it into English.
Common mistakes with かもしれない
Watch out for these mistakes:
- Using it with the wrong verb, noun, or adjective form
- Confusing it with でしょう because the English translation can look similar
- Translating it too literally instead of reading the whole sentence context
A good study habit is to write one short sentence and then change only the grammar point. This makes the difference between similar patterns easier to feel.
Is かもしれない on the JLPT?
Yes. かもしれない is commonly taught as JLPT N4 grammar.
That means learners should be able to:
- recognize it in reading
- understand its nuance in context
- use it in simple original sentences
For test preparation, do not only memorize the English gloss. Practice identifying the words around the grammar point, because JLPT questions often test structure and context together.
Practice questions for かもしれない
Try making your own sentences with these prompts:
- Write one sentence using the basic pattern.
- Change the sentence into polite or casual style if possible.
- Compare it with the related pattern from the comparison section.
Keep the sentences short at first. Once the form feels natural, add time words, places, reasons, or contrast to make the sentence more realistic.
Learn かもしれない with Kanjiru
If you want to review かもしれない together with kanji, vocabulary, and other JLPT N4 patterns, Kanjiru helps you practice Japanese in short, focused sessions.
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