How to tell them apart
Both の and こと turn a clause into a noun, but they are not interchangeable. Use の for concrete events that are directly seen, heard or felt, as in 走るのを見た and 歌うのを聞いた. Use こと for abstract facts, opinions or general statements, as in 走ることが好きだ and 彼が親切なことを知った.
- こと Use こと to turn an abstract fact, thought or general statement into a noun.
- の Use の to turn a directly seen, heard or experienced event into a noun.
| Grammar point | Meaning | JLPT level |
|---|---|---|
| こと koto | Turns words or phrases into noun-like things (that/to/doing) | N5 |
| の no | Turns a phrase into a noun: that ~; to do ~; doing ~ | N5 |
こと koto
Turns words or phrases into noun-like things (that/to/doing)
こと turns a verb phrase into a noun phrase, like doing, to do, or what someone says. It lets you talk about an action or idea as a thing that can be known, wanted, or needed. Attach it to the plain form of the verb, as in すること, したいこと, or 分からないこと, not the polite ます form. It is neutral and common in both speech and writing.
-
ごめん、言いたいことがわからないんだけど。
Sorry, I don't get your point.
-
やることがあるんだ。
I have stuff to do.
の no
Turns a phrase into a noun: that ~; to do ~; doing ~
の turns a verb or adjective phrase into a noun phrase meaning doing something, to do something, or that something happens, so it can act as subject or object. It attaches to the plain form, as in 書くの, 書かないの, 難しいの, and 静かなの, and the resulting phrase takes particles like は, が, or を. Use the plain form before の even in polite sentences, so avoid forms like 書きますの.
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日本語を話すのは楽しいです。
Speaking Japanese is fun.
-
チョークで書くのはやさしいことではない。
It is not easy to write in chalk.
こと and の are both JLPT N5 grammar points that Japanese learners often mix up. This page compares them side by side on meanings, usage and example sentences, so you can tell them apart.