英語の前置詞って難しそう？実は、3つの基本（in, on, at）をイメージで覚えるだけで、テストでもバッチリ使えるようになるんだ。「点→面→空間」の順番で理解すれば、もう迷わない！
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Updated Mar 30, 2026
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前置詞の基礎講座
1 / 6
前置詞の基礎知識
前置詞は名詞の前に置く小さな言葉だけど、文の意味を決める超重要な役割を持ってる。「いつ」「どこで」を正確に伝えるために絶対に必要なんだ。
前置詞は必ず名詞とセットで使う。「in the park」「at seven o'clock」みたいに、前置詞の後には必ず名詞か代名詞が来るよ。
基本の3つ「in」「on」「at」は、「広い→せまい」の順番で覚えよう。inが一番広くて、atが一番せまい「点」のイメージだ。
覚えるコツ: 単語だけじゃなくて「at the station」みたいに、うしろの名詞とセットで覚えると効果的！
場所を表す前置詞の使い分け
場所を表すときは、その場所を「点」「面」「空間」のどれで見るかが大事。これができれば、もうテストも怖くない！
atは点のイメージ。地図上の一点や特定の場所を指すときに使う。「at the station」「at home」みたいに、その場所を待ち合わせ地点として見てる感じだね。
onは面に接しているイメージ。テーブルの上や壁など、何かの表面にくっついている状態を表す。「on the desk」「on the wall」って感じ。
inは空間の中のイメージ。建物の中や箱の中、都市や国など、立体的な空間や広い範囲を表すときに使うよ。
テスト対策: 乗り物も要注意！電車・バスは「on」、車・タクシーは「in」を使う。
時を表す前置詞の使い分け
時を表すときも、場所と同じように「点の時間」「特定の日」「長い期間」かで使い分ける。カレンダーをイメージすると分かりやすいよ。
atは時刻など、一点の時間。「at 7:30」「at noon」のように、具体的な時刻を指すときに使う。時間のピンポイントって感じだね。
onは特定の日や曜日。カレンダーの「1マス」に当たる部分で、「on Sunday」「on May 5th」みたいに使う。
inは月・季節・年など、長い期間。カレンダーの「1枚」や「全部」に当たる感じで、「in summer」「in 2024」って使うよ。
例外注意: 「朝・昼・夕方」は「in」だけど、「夜」だけは「at night」！これは覚えるしかない。
実践的な使い分けテクニック
実際の文でどう使うかを練習してみよう。パターンを覚えれば、応用問題もスラスラ解けるようになる！
場所の例文：「There is a picture on the wall.」壁の表面にかかっているから「on」。「I play soccer in the park.」公園という空間の中だから「in」だね。
時の例文：「My school starts at 8:30.」時刻だから「at」。「We have a test on Friday.」特定の曜日だから「on」。「My brother was born in 2010.」年だから「in」。
覚え方のコツは、前置詞と名詞をセットで覚えること。「at the library」「on Monday」「in Japan」みたいに、まとまりで頭に入れよう。
テストの裏技: 迷ったときは「点→面→空間」「短い時間→1日→長い期間」の順番で考えてみて！
テストで差がつくポイント
テストでよく出る引っかけポイントを知っておくと、確実に点数アップできる。これらを覚えておけば、もう迷わないよ！
時間表現の例外：「in the morning/afternoon/evening」だけど「at night」。夜だけ特別なので、セットで覚えておこう。
乗り物の使い分け：電車やバスのように中で動ける広い乗り物は「on」、車やタクシーのように座るだけのせまい乗り物は「in」を使う。
曜日・日付と月・年の区別：カレンダーの1マスに当たる「on Monday」「on the 10th」、カレンダー1枚分の「in May」「in 2024」って覚えよう。
最終チェック: 前置詞は単語だけじゃなく、うしろの名詞とのコンビネーションが大事。パターンで覚えるのが成功の秘訣！
まとめ - これだけは絶対覚えよう
基本のイメージさえつかめば、応用問題も自信を持って解けるようになる。君なら絶対にできる！
at: 「点」のイメージ。特定の場所（at the library）、特定の時刻（at 5 p.m.）で使う。
on: 「面」のイメージ。表面（on the table）、特定の日付や曜日（on Friday）で使う。
in: 「空間・中」のイメージ。広い場所（in Japan）、月や年などの長い期間（in summer）で使う。
チェックリスト：at nightとin the morningの違い、乗り物のonとinの使い分け、場所と時のイメージのピラミッドを頭に入れたかな？
応援メッセージ: この基本ルールを使いこなせれば、英語の表現力がグンとアップする。練習すれば必ずマスターできるよ！
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Most popular content in 英語
Most popular content
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
前置詞の基礎講座
英語の前置詞って難しそう？実は、3つの基本（in, on, at）をイメージで覚えるだけで、テストでもバッチリ使えるようになるんだ。「点→面→空間」の順番で理解すれば、もう迷わない！
前置詞の基礎知識
前置詞は名詞の前に置く小さな言葉だけど、文の意味を決める超重要な役割を持ってる。「いつ」「どこで」を正確に伝えるために絶対に必要なんだ。
前置詞は必ず名詞とセットで使う。「in the park」「at seven o'clock」みたいに、前置詞の後には必ず名詞か代名詞が来るよ。
基本の3つ「in」「on」「at」は、「広い→せまい」の順番で覚えよう。inが一番広くて、atが一番せまい「点」のイメージだ。
覚えるコツ: 単語だけじゃなくて「at the station」みたいに、うしろの名詞とセットで覚えると効果的！
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場所を表す前置詞の使い分け
場所を表すときは、その場所を「点」「面」「空間」のどれで見るかが大事。これができれば、もうテストも怖くない！
atは点のイメージ。地図上の一点や特定の場所を指すときに使う。「at the station」「at home」みたいに、その場所を待ち合わせ地点として見てる感じだね。
onは面に接しているイメージ。テーブルの上や壁など、何かの表面にくっついている状態を表す。「on the desk」「on the wall」って感じ。
inは空間の中のイメージ。建物の中や箱の中、都市や国など、立体的な空間や広い範囲を表すときに使うよ。
テスト対策: 乗り物も要注意！電車・バスは「on」、車・タクシーは「in」を使う。
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時を表す前置詞の使い分け
時を表すときも、場所と同じように「点の時間」「特定の日」「長い期間」かで使い分ける。カレンダーをイメージすると分かりやすいよ。
atは時刻など、一点の時間。「at 7:30」「at noon」のように、具体的な時刻を指すときに使う。時間のピンポイントって感じだね。
onは特定の日や曜日。カレンダーの「1マス」に当たる部分で、「on Sunday」「on May 5th」みたいに使う。
inは月・季節・年など、長い期間。カレンダーの「1枚」や「全部」に当たる感じで、「in summer」「in 2024」って使うよ。
例外注意: 「朝・昼・夕方」は「in」だけど、「夜」だけは「at night」！これは覚えるしかない。
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
実践的な使い分けテクニック
実際の文でどう使うかを練習してみよう。パターンを覚えれば、応用問題もスラスラ解けるようになる！
場所の例文：「There is a picture on the wall.」壁の表面にかかっているから「on」。「I play soccer in the park.」公園という空間の中だから「in」だね。
時の例文：「My school starts at 8:30.」時刻だから「at」。「We have a test on Friday.」特定の曜日だから「on」。「My brother was born in 2010.」年だから「in」。
覚え方のコツは、前置詞と名詞をセットで覚えること。「at the library」「on Monday」「in Japan」みたいに、まとまりで頭に入れよう。
テストの裏技: 迷ったときは「点→面→空間」「短い時間→1日→長い期間」の順番で考えてみて！
Sign up to see the contentIt's free!
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Improve your grades
Join milions of students
テストで差がつくポイント
テストでよく出る引っかけポイントを知っておくと、確実に点数アップできる。これらを覚えておけば、もう迷わないよ！
時間表現の例外：「in the morning/afternoon/evening」だけど「at night」。夜だけ特別なので、セットで覚えておこう。
乗り物の使い分け：電車やバスのように中で動ける広い乗り物は「on」、車やタクシーのように座るだけのせまい乗り物は「in」を使う。
曜日・日付と月・年の区別：カレンダーの1マスに当たる「on Monday」「on the 10th」、カレンダー1枚分の「in May」「in 2024」って覚えよう。
最終チェック: 前置詞は単語だけじゃなく、うしろの名詞とのコンビネーションが大事。パターンで覚えるのが成功の秘訣！
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
まとめ - これだけは絶対覚えよう
基本のイメージさえつかめば、応用問題も自信を持って解けるようになる。君なら絶対にできる！
at: 「点」のイメージ。特定の場所（at the library）、特定の時刻（at 5 p.m.）で使う。
on: 「面」のイメージ。表面（on the table）、特定の日付や曜日（on Friday）で使う。
in: 「空間・中」のイメージ。広い場所（in Japan）、月や年などの長い期間（in summer）で使う。
チェックリスト：at nightとin the morningの違い、乗り物のonとinの使い分け、場所と時のイメージのピラミッドを頭に入れたかな？
応援メッセージ: この基本ルールを使いこなせれば、英語の表現力がグンとアップする。練習すれば必ずマスターできるよ！
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user