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JLPT N5 Vocabulary – Why is “多い + noun” not correct?


Table of Contents

1. Why is “多おおい+名詞めいし” not correct?
2. 多おおい
3. Why can’t we say “多い + noun”?
4. 多おおく
5. Summary
6. Quiz
7. Similar Articles
8. Comment

Q: Why is “多おおい + noun” incorrect?

A: “多おおい” does not describe a characteristic of a person or thing itself. Instead, it expresses that the number or quantity of something is large, so it is generally used in the pattern “〇〇が多おおい.”

多おおい (JLPT N5)

[Meaning]
Expresses that the number or amount of people or things is large.

[Examples]
今日きょうは人ひとが多おおいですね。
There are a lot of people today.

夏休なつやすみは旅行りょこうする人ひとが多おおいです。

A lot of people travel during summer vacation.

この店みせは客きゃくが多おおくて、いつもにぎやかです。
This restaurant has a lot of customers and is always lively.

今週こんしゅうは仕事しごとが多おおいです。

I have a lot of work this week.

Why can’t we say “多い + noun” ?

Many い adjectives, such as “大おおきい” (big), “新あたらしい” (new), and “おいしい” (delicious), can be placed directly before a noun.

[Examples]
大おおきい犬いぬ

a big dog

新あたらしい車くるま

a new car

おいしい料理りょうり

delicious food

In these examples, “大おおきい” directly describes a characteristic of the dog, and “新あたらしい” directly describes a characteristic of the car.

However, “多おおい” is a slightly unusual adjective.
Rather than describing a person or thing itself, “多おおい” expresses that the number or amount of people or things is large.

For this reason, it is generally used in the pattern “〇〇が多おおい.”
Although “多おおい” is an adjective, remember that it is used a little differently from many other adjectives because it generally cannot be placed directly before a noun.

[Example]
ねこが多おおいです。

There are many cats.
⇒ “多おおい” does not describe a characteristic of the cats themselves. It means that the number of cats is large.

[Example]
今月こんげつは給料きゅうりょうが多おおくて嬉うれしいです。

I’m happy this month because my salary is higher.
⇒ “多おおい” does not describe a characteristic of the salary itself. It indicates that the amount of salary is greater than usual.

多おおく

So, how can you say “a lot of ~” before a noun, as in “many people” or “many books”?

The commonly used patterns are “たくさんの + noun” and “多おおくの + noun.”

[Examples]
たくさんの人ひとが駅えきへ向むかっています。

A lot of people are heading to the station.

多おおくの人ひとが駅えきへ向むかっています。

Many people are heading to the station.

たくさんの学生がくせいが参加さんかしました。

A lot of students participated.

多おおくの学生がくせいが参加さんかしました。

Many students participated.

Both expressions mean that the number of people is large.
However, “たくさんの” is more commonly used in everyday conversation, while “多おおくの” is slightly more formal and is often used in news reports and written language.

Summary

  • “多おおい” is an adjective that expresses that the number or amount of people or things is large.
  • Unlike expressions such as “大おおきい犬いぬ” (a big dog) or “新あたらしい車くるま” (a new car), “多おおい + noun” is generally not used.
  • To express that the number or amount of something is large, use the pattern “〇〇が多おおい.”

Quiz

Read the following sentence and choose the expression that fits the context from the options provided in the parentheses.

Click on the question to check the answer.

Q1. (多おおい・多おおくの)人ひとがこのプロジェクトの完成かんせいを待まっていました。

A. 多おおくの

多おおくの人ひとがこのプロジェクトの完成かんせいを待まっていました。  

Many people were waiting for the completion of this project.

*“多おおくの” is correct because it is followed by the noun “人ひと.”


Q2. 渋谷しぶやは人ひとが(多おおい・多おおくの)し疲つかれたよ。

A. 多おおい

渋谷しぶやは人ひとが多おおいし疲つかれたよ。  

There are so many people in Shibuya, and it was tiring.

*“多おおい” is correct because it is used in the pattern “人ひとが多おおい” to express that the number of people is large.


Q3. この歌手かしゅには(多おおい・多おおくの)ファンがいます。

A. 多おおくの

この歌手かしゅには多おおくのファンがいます。  

This singer has many fans.

*“多おおくの” is correct because it is followed by the noun “ファン.”


Q4. このケーキ、とてもあまいですね。さとうが (多おおい・多おおくの)んじゃないですか。

A. 多おおい

このケーキ、とてもあまいですね。さとうが多おおいんじゃないですか。  

This cake is very sweet. Isn’t there a lot of sugar in it?

*“多おおい” is correct because it is used in the pattern “砂糖さとうが多おおい” to express that the amount of sugar is large.

Similar Articles

  • JLPT N5 Vocabulary – How to count numbers in Japanese
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  • JLPT N5 Vocabulary – Why is “多い + noun” not correct?
  • JLPT N5 Vocabulary – The difference between “大きい” and “大きな”
  • JLPT N4・N5 Grammar – The difference between “〜に会う/合う” and “〜と会う/合う”

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