Grammar Info
N3 Lesson 4: 13/21

関係(かんけい)がある
(not) involved with, (not) concerned with, (no) connection with, (no) relationship with, (not) related to

Structure
Noun + に(1) + 関係 + がある(2)
Noun + に(1) + 関係 + (3)ある(2) + Noun

(1)
(2) ない
(3)
Details
Register Standard
使用域 一般
Information
When the 名詞(めいし) (noun) 関係(かんけい) ‘a relation’ is paired with がある ‘to have’, it will be received in a similar way to phrases like ‘involved with (A)’, ‘concerning (A)’, or ‘in relation to (A)’. 関係(かんけい)がある is often be preceded by the 格助詞(かくじょし) (case marking particle) , expressing the location ‘where’ the connection exists.
itself will always be preceded by a noun or noun-phrase.
  • さっき森(もり)方(ほう)逃(に)げた人(ひと)は事件(じけん)に関係(かんけい)があると思(おも)います
    I think the person that ran into the forest earlier is involved in the crime.
  • この仕事(しごと)に関係(かんけい)がある資料(しりょう)全(すべて)て提出(ていしゅつ)してください
    Please submit all documents concerning this work.
Alternatively, be replaced by other 格助詞(かくじょし) such as と or の. Each has a slightly different nuance, but are used quite interchangeably.
に関係(かんけい)がある - Relating to (A).
と関係(かんけい)がある - Related with (A).
の関係(かんけい)がある - Having a relation with (A).
  • あの工場(こうじょう)は川(かわ)汚染(おせん)と関係(かんけい)があるそうだ。
    I heard that that factory has something to do with the pollution of the river.
  • この事件(じけん)と関係(かんけい)がある人(ひと)全員(ぜんいん)ここ連(つ)れてきてください
    Please bring everyone related to this case over here.
  • それこれはなんの関係(かんけい)があるのだろうか
    I wonder what relationship this and that have.
  • この被害者(ひがいしゃ)関係(かんけい)がある人(ひと)集(あつ)めてください
    Please gather all people that are connected to this victim.
Naturally, ある may be replaced by ない, to express that the is ‘no relation’ between (A) and (B).
  • それは私(わたし)に関係(かんけい)ないです
    That, I have no connection to.
  • 授業(じゅぎょう)に関係(かんけい)ない本(ほん)はしまってください
    Please put away books that aren't related to class.
Fun Fact
The primary difference between に and と in this grammar pattern is that に highlights the relationship from a single perspective, while と focuses more on how (A) and (B) are related together.
  • この事件(じけん)に関係(かんけい)ない人(ひと)は帰(かえ)ってください
    People that have no connection to this crime, please go home.
  • 私(わたし)話(はなし)と関係(かんけい)ないこと言(い)わないで
    Please don't say anything that isn't related to my story.
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彼(かれ)らはそれぞれあいざわさんと不透明(ふとうめい)な関係(かんけい)があるように見(み)える
It seems that they each have some unclear relationship with Mr. Aizawa.
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容疑者(ようぎしゃ)と直(じか)に関係(かんけい)がある人物(じんぶつ)が全員(ぜんいん)呼(よ)び出(だ)された。
Each person directly related to the suspect was summoned.
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これと事故(じこ)の間(あいだ)になんらかの関係(かんけい)があるはずだ。
There has to be some kind of relation between the accident and this.
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