Usage and Nuances
The verb 減る (へる) is commonly used to express a decrease in quantity, size, or number. It is an intransitive verb, so it does not take a direct object. Instead, the subject itself decreases or diminishes. This word is often used in everyday contexts such as population, money, weight, or resources.
Common Collocations
- 人口が減る (じんこうがへる): population decreases
- お金が減る (おかねがへる): money decreases
- 体重が減る (たいじゅうがへる): weight decreases
These collocations show typical subjects that naturally decrease over time or due to certain actions.
Register and Politeness
減る is a neutral, standard verb suitable for both casual and formal conversations. It is often paired with polite forms like 減ります (へります) in formal speech.
Common Mistakes
Learners sometimes confuse 減る (intransitive) with 減らす (へらす), which is the transitive form meaning "to reduce" or "to decrease something." Remember, 減る describes something decreasing by itself, while 減らす means actively causing a decrease.
Understanding this distinction will help you use these verbs correctly in conversation and writing.