可能性がある means may/might; there’s a possibility that ~. It is a JLPT N1 Japanese grammar pattern used to express that something is possible or likely based on available evidence, conditions, or logical reasoning.
This grammar point often appears in news reports, academic writing, business forecasts, and JLPT N1 reading passages. If you want to discuss probability in a careful, evidence-based way, 可能性がある is a useful pattern to learn because it lets you avoid overstatements and keeps your Japanese precise.
What does 可能性がある mean?
Use 可能性がある when you want to state that an event or condition has a real chance of occurring, without committing to certainty. It signals that you have considered the facts and see a credible path to that outcome.
Natural translations include:
- may/might; there’s a possibility that ~
The best translation depends on the formality of the context. In casual speech, “might” often feels natural; in formal analysis, “there is a possibility that” works better. Notice the speaker’s goal first, then pick the English that matches.
How to form 可能性がある
The grammar attaches to a noun phrase or a plain‑form clause describing the possible event.
Examples of the pattern:
- 地震の可能性がある
- 回復する可能性がある
- 高い可能性がある
- 必要な可能性がある
In formal writing, you may also see the variant 可能性が高い (the possibility is high) or 可能性は低い (the possibility is low) to modify the probability, but the core structure remains the same.
JLPT questions often test whether you can correctly connect a clause to 可能性がある; a wrong answer might use a polite form (～ます可能性) or omit the の after a noun.
When is 可能性がある used?
Use 可能性がある in situations like:
- predicting outcomes based on data, symptoms, or historical patterns
- hedging statements in formal reports, news, or academic papers
- expressing a cautious but rational expectation
- discussing risks, forecasts, or hypothetical developments
Tone and register:
- neutral to formal; sounds objective and analytical
- Common in newspapers, business meetings, scientific articles, and JLPT N1 reading comprehension
可能性がある example sentences
After reading each sentence, ask what job 可能性がある is doing: framing a plausible, evidence‑supported outcome without over‑promising. That makes the nuance easier to remember than a single English word.
Nuance of 可能性がある
The key nuance is an objective, evidence‑based assessment that a certain outcome is not guaranteed but is realistically possible.
Unlike casual guesses, 可能性がある implies that you have some grounds — data, precedent, logical deduction — for your statement. It sits in the spectrum between “definitely will happen” and “just a wild guess.” It often carries a tone of professional caution.
For example:
- In a weather forecast, “雨が降るかもしれない” sounds like a personal hunch; “雨が降る可能性がある” sounds like a forecaster citing satellite data.
- In a meeting, saying “売上が伸びる可能性がある” suggests you’ve looked at trends; “伸びるかもしれない” could mean you’re just being optimistic.
This distinction matters for JLPT N1 because reading passages often expect you to infer whether the author is merely speculating or drawing a reasoned conclusion.
可能性がある vs かもしれない
Both 可能性がある and かもしれない translate to “may/might,” but their underlying stance is different.
Quick contrast:
- 可能性がある is often used in formal reports, news, and academic settings. It’s less about personal feeling and more about plausible scenarios.
- かもしれない is the go‑to pattern in casual speech, and it places the speaker’s uncertainty front and center.
If both translations seem possible, check the register. Is the sentence from a newspaper or a chat with a friend? The formality alone often determines which one sounds natural.
Common mistakes with 可能性がある
Watch out for these mistakes:
A helpful practice is to take a speculative sentence with かもしれない and rewrite it as 可能性がある while adjusting the surrounding context to make it sound evidence‑based. That shift teaches you the register difference.
Is 可能性がある on the JLPT?
Yes. 可能性がある is commonly taught as JLPT N1 grammar.
✔ Understand its nuance (objective vs. subjective)
✔ Use it in a simple, context‑appropriate sentence
That means learners should be able to:
- recognise it in long, formal texts
- distinguish it from similar expressions like かもしれない or 恐れがある
- produce a sentence where the choice of 可能性がある fits the register and intent
For test preparation, study the grammar point in full, paragraph‑length sentences. JLPT questions often test whether you can infer the speaker’s degree of certainty, not just the literal meaning.
Practice questions for 可能性がある
Keep your first sentences straightforward. Once the structure feels natural, add more context — for example, include a condition (もし〜たら) or a contrasting outcome — to make the nuance sharper.
Learning path for 可能性がある
To learn 可能性がある efficiently, start with its formation, then compare it with similar expressions, and finally practice in authentic contexts.
Related grammar to review next
- からある・からする・からの — because it also introduces an estimation based on existing facts
- かいもなく — because it contrasts effort with a possible (or impossible) outcome
- かれ～かれ — because it expresses extremes that frame a likely range
- かぎりだ — because it stresses the speaker’s conviction about an emotional or observable state
Learn 可能性がある with Hane
If you want to review 可能性がある together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.
Browse more lessons here:
FAQ about 可能性がある
What does 可能性がある (kanousei ga aru) mean in Japanese?
可能性がある (kanousei ga aru) means “may/might; there’s a possibility that”. It is JLPT N1 grammar. Use 可能性がある when you want to state that an event or condition has a real chance of occurring, without committing to certainty. It signals that you have considered the facts and see a credible path to that outcome.
How do you form 可能性がある (kanousei ga aru)?
The grammar attaches to a noun phrase or a plain‑form clause describing the possible event.
What is the difference between 可能性がある and かもしれない?
可能性がある: objective, evidence‑based; common in formal registers. かもしれない: subjective, speculative; everyday conversation.
What is an example sentence with 可能性がある (kanousei ga aru)?
明日は天気が崩れる可能性があるので、傘を持って行ったほうがいいです。 — The weather might turn bad tomorrow, so you should take an umbrella.