N2 Possibility and Difficulty
~うる/~える/~えない: meaning, usage and examples
~うる/~える/~えない means: can... / be able to... (potential).
How to form it
<Verb ます-stem> + うる / える (negative: <Verb ます-stem> + えない; past: えた)
Examples
誰にでも起こりうることだ。
It's something that can happen to anyone.
その可能性は否定しえない。
That possibility cannot be denied.
考えうる限りの方法を試したが、うまくいかなかった。
I tried every method I could think of, but nothing worked.
この問題は一人の力では解決しえない。
This problem cannot be solved by one person alone.
When to use it
A formal way to say that something is possible or can happen. It attaches to the ます-stem and appears mostly in writing, news and speeches, with verbs like 起こる, ある, 考える and 理解する. For example, 誰にでも起こりうる means "it can happen to anyone." The negative えない says something is impossible or cannot be done.
Nuance
Written or formal; in conversation people use できる or the normal potential form. The affirmative is usually うる in the dictionary form (ありうる, 起こりうる) and える before ます or in other forms; the negative is always えない. It describes possibility, not personal skill.
Compare
The potential form (話せる) talks about ability: 日本語が話せる. うる talks about whether something is possible at all: 事故は起こりうる. Also compare かねない, which warns that a bad result may happen: 事故になりかねない, while うる is neutral about good or bad.
Tip: Memorize ありうる / ありえない first: ありえない is common even in casual speech ("no way!"). Never use うる for ability like swimming or reading.
More in Possibility and Difficulty
Frequently asked questions
What does ~うる/~える/~えない mean?
Can... / be able to... (potential). Example: 誰にでも起こりうることだ。 (It's something that can happen to anyone.)
How do you form ~うる/~える/~えない?
<Verb ます-stem> + うる / える (negative: <Verb ます-stem> + えない; past: えた). Memorize ありうる / ありえない first: ありえない is common even in casual speech ("no way!"). Never use うる for ability like swimming or reading.