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Grammar JLPT Level N4 - Lesson 23

Structure of 必要(ひつよう)がある:

Verb + 必要(ひつよう) + が + ある

Details about 必要(ひつよう)がある:

Like 必要(ひつよう), 必要(ひつよう)がある is an expression which is used to highlight the 'need' or 'necessity' of something. The primary difference being that 必要(ひつよう)がある highlights the need to 'do (A)', and will therefore be used with verbs (without the need for nominalization).
To use 必要(ひつよう)がある, just attach it after the plain form of the verb that you want to highlight the 'need' for.
  • 明日(あした)にテストがあるから勉強(べんきょう)する必要(ひつよう)がある
    Because I have a test tomorrow, it is necessary to study.
  • 息子(むすこ)まだ(ちい)ので、いつも一緒(いっしょ)にい必要(ひつよう)がある
    Since my son is still little, it is necessary for me to be with him at all times.
As we can see, this construction is simply the combination of a verb + 必要(ひつよう) (creating a verb modified noun), the case marking particle , and the う-Verb ある. In this way, it just means 'the need of doing (A) exists'.
Naturally, this grammar pattern may also be used negatively, to highlight that there is 'no need to do (A)', or that 'doing (A) is not necessary'.
  • カイル日本語(にほんご)()ので書類(しょるい)英語(えいご)(やく)必要(ひつよう)がない
    Since Kyle understands Japanese, there is no need to translate the documents into English.
  • (むすめ)元気(げんき)になっので病院(びょういん)()必要(ひつよう)がありません
    Since my daughter got well, there is no need to go to the hospital.
必要(ひつよう)がある

Usage Notes for 必要(ひつよう)がある:

Synonyms for 必要(ひつよう)がある:

がひつよう
Need, Necessary
ことはない
There is no need to, Never happens

Example of 必要(ひつよう)がある

(あさ)(はん)()べる必要(ひつよう)がある

It is necessary to eat breakfast.

海外(かいがい)旅行(りょこう)()きたいなら、パスポート()っていく必要(ひつよう)がある

It is necessary to take a passport with you if you want to go overseas.

それ明日(あした)までに()える必要(ひつよう)がある

It is necessary to finish that by tomorrow.

ホテル()まるならカミソリ()って()必要(ひつよう)がある

If you are going to stay at a hotel, it is necessary to bring a razor.

テスト合格(ごうかく)したかったら先生(せんせい)(はなし)()必要(ひつよう)がある

If you want to pass the test, it is necessary to listen to the teacher's instruction.

Grammar same lesson

んだけど

But..., And...
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例(たと)えば

For example
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If, When, Whenever, And, [Conditional]
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筈(はず)がない

Hardly possible, Cannot be, Highly unlikely, Improbable
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しか~ない

There's only, Nothing but
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