2つの文をつなぐ接続詞の働きと代名詞の働きを兼ねたものを関係代名詞と言う 前の名詞（先行詞）を修飾する 先行詞が人なら，who か that 先行詞がモノや動物なら，which か that 関係代名詞の後の動詞は先行詞や時に合わせて変化させる Ken is a boy. He likes cats. Ken is a boy who likes cats. 健は少年だ，彼はネコが好きだ

赤いドレスを着ている女の子は私の妹です。 The girl who is wearing a red dress is my sister.

私を助けてくれた男性はとても親切でした。

• The woman who works in the hospital is my aunt.
• The man who helped me was very kind.
• The students who studied hard passed the test.

熱心に勉強した生徒たちはテストに合格しました。

• The woman who works in the hospital is my aunt.
• The man who helped me was very kind.
• The students who studied hard passed the test.

病院で働いている女性は私のおばです。

• The woman who works in the hospital is my aunt.
• The man who helped me was very kind.
• The students who studied hard passed the test.

テーブルの上にあるその本は私のものです。

• The movie which we watched last night was interesting.
• I have a pen which writes well.
• The book which is on the table is mine.

昨晩私たちが見た映画は面白かったです。

• The movie which we watched last night was interesting.
• I have a pen which writes well.
• The book which is on the table is mine.

私はよく書けるペンを持っています。

• The movie which we watched last night was interesting.
• I have a pen which writes well.
• The book which is on the table is mine.

私を助けてくれたその男の子は私の親友です。

• The car that is parked outside is new.
• The book that I borrowed from the library is interesting.
• The boy that helped me is my best friend.

外に停められているその車は新しいです。

• The car that is parked outside is new.
• The book that I borrowed from the library is interesting.
• The boy that helped me is my best friend.

私が図書館から借りたその本は面白いです。

• The car that is parked outside is new.
• The book that I borrowed from the library is interesting.
• The boy that helped me is my best friend.

私に電話をかけたその人はだれですか。

• Who is the boy that is playing with my dog?
• Who is the person that called me?
• Who are the people that are waiting outside?

私の犬と遊んでいるその男の子はだれですか。

• Who is the boy that is playing with my dog?
• Who is the person that called me?
• Who are the people that are waiting outside?

あなたが訪れたいその場所はどこですか。

• Where is the park that you visited last weekend?
• What is the place that you want to visit?
• What is the place that you go to every day?

あなたが毎日行くその場所はどこですか。

• Where is the park that you visited last weekend?
• What is the place that you want to visit?
• What is the place that you go to every day?

あなたが先週末に訪れたその公園はどこですか。

• Where is the park that you visited last weekend?
• What is the place that you go to every day?
• What is the place that you want to visit?

私は3つの言語を話す友達がいます。 I have a friend ( ) ( ) three languages.

• who speaks

• that speaks

壊れたその椅子は修理する必要があります。 The chair ( ) ( ) broken needs to be fixed.

• which is

• that is

赤いドレスを着ている女の子は私の妹です。 The girl ( ) ( ) ( ) a red dress is my sister.

• who is wearing

• that is wearing

私を助けてくれたその男の子は私の親友です。 The boy that ( ) ( ) is my best friend.

• helped me