How to Use “~がきっかけで” (ga kikkake de) in Japanese: Express Your Turning Points

level3 (N3)

Introduction

Have you ever been asked questions like:

  • “Why did you start studying Japanese?”
  • “How did you two become friends?”
  • “What made you want to do this job?”

When you want to explain the initial reason, motivation, or turning point that led to a new action or habit, you can use the expression:

~がきっかけで = being motivated by ~ / for the initial reason of ~ / triggered by ~

Let’s learn how to use this grammar point to share your personal stories and turning points naturally in Japanese!


1. Meaning: What does ~がきっかけで mean?

In Japanese, きっかけ (kikkake) means a trigger, catalyst, or cue.

The structure XがきっかけでY means that X is the reason or triggering factor that started Y.

Important Nuance:

  • X typically represents an event or action that served as a turning point.
  • Y conveys some change that happened after X, such as forming a new habit, starting a new action, or changing an opinion. (You will often see phrases like 〜ようになった or 〜し始はじめた in the Y part).

2. Formation

You can connect this grammar point to Nouns or Verbs. When using a verb, it must usually be in the past tense (た-form) followed by the nominalizer の or こと.

Word TypeRuleExample
Noun (N)N + がきっかけで飲のみ会かいがきっかけで
(Triggered by a drinking party)
Verb (V)V-た + の + がきっかけで
V-た + こと + がきっかけで
見みたのがきっかけで
(Motivated by watching…)
アルバイトをしたことがきっかけで
(Motivated by working part-time…)

Understanding grammar is one thing. Using it naturally is another.
Practice this expression with a native Japanese tutor.

Practice with a tutor →

3. Variation: ~をきっかけに

You will also frequently see or hear ~をきっかけに. The meaning is exactly the same as ~がきっかけで, but it sounds slightly more formal and is often used in writing or polite speeches.

E.g., アニメをきっかけに、日本文化にほんぶんかに興味きょうみを持もちました。= Triggered by anime, I became interested in Japanese culture.

Note: Both are completely natural in everyday conversation, so you can use whichever is easier for you to remember!

4. Example Sentences

Using with Nouns

日本にほんへの旅行りょこうがきっかけで、着物きものに興味きょうみを持もちました。
A trip to Japan was the trigger that got me interested in kimono.


アニメがきっかけで日本語にほんごの勉強べんきょうを始はじめました。
I started studying Japanese because of anime.


ジョンとは、サークルの飲のみ会かいがきっかけで仲なかよくなったんだ。
I became friends with John after a club drinking party.


Using with Verbs (〜たのが / 〜たことが)

子こどもの頃ころ、親おやにパソコンを買かってもらったのがきっかけで、プログラミングを学まなび始はじめた。
When I was a child, my parents bought me a computer, and that’s what got me started on learning to program.


英会話教室えいかいわきょうしつでアルバイトをしたことがきっかけで、将来しょうらい日本にほんで英語えいごを教おしえる仕事しごとがしたいと思おもうようになった。
Working part-time at an English conversation class served as the turning point that made me want to teach English in Japan in the future.


A: どうしてジョギングを始はじめたんですか。
B: 実じつは、医者いしゃに言いわれたのがきっかけで、走はしるようになったんです。
A: Why did you start jogging?
B: Actually, being told by my doctor was the trigger that got me to start running.


5. Related Grammar

~ようになる

Both ~がきっかけで and ~ようになる are often used together to describe a change.

  • ~がきっかけで explains what caused the change.
  • ~ようになる describes the change itself.

Example: アニメがきっかけで、日本語にほんごを話はなせるようになりました。
Anime was the trigger that helped me become able to speak Japanese.

Here, アニメがきっかけで explains the reason the change started, while 話せるようになりました describes the result of that change.

~ため(に)

Both expressions can explain a reason, but they have different meanings.

  • ~がきっかけで = the trigger or turning point that led to a change or new action.
  • ~ため(に) = the direct cause or reason for something.

Compare:

  • 日本にほんへの旅行りょこうがきっかけで、日本語にほんごの勉強べんきょうを始はじめました。
    A trip to Japan was the trigger that made me start studying Japanese.
  • 日本語にほんごで漫画まんがを読よむために、日本語にほんごの勉強べんきょうを始はじめました。
    I started studying Japanese so that I could read manga in Japanese.

In the first sentence, a trip to Japan is the trigger that inspired the speaker to start studying Japanese. In the second sentence, reading manga in Japanese is the purpose of studying Japanese.

Key Difference: Time Focus

  • ~がきっかけで is backward-looking. It focuses on an event in the past that sparked a change.
  • ~ため(に) is forward-looking. It focuses on a goal in the future that you are trying to achieve.

~のおかげで

Both grammar points can mention something that leads to a result, but they focus on different things.

  • ~がきっかけで emphasizes how something began.
  • ~のおかげで emphasizes that someone or something produced a good result.

Compare:

  • 先生せんせいのアドバイスがきっかけで、日本語にほんごを勉強べんきょうし始はじめました。
    My teacher’s advice was the trigger that made me start studying Japanese.
  • 先生せんせいのアドバイスのおかげで、日本語にほんごが上手じょうずになりました。
    Thanks to my teacher’s advice, my Japanese improved.

The first sentence focuses on the starting point, while the second focuses on the positive outcome.

~のせいで

Like ~のおかげで, this grammar expresses a cause, but ~のせいで is used for negative results.

  • ~がきっかけで simply introduces a trigger and is neutral.
  • ~のせいで implies that something caused an unpleasant result.

Compare:

  • 友達ともだちの紹介しょうかいがきっかけで、その会社かいしゃで働はたらき始はじめました。
    A friend’s introduction was the trigger that led me to start working at that company.
  • 風邪かぜのせいで、卒業旅行そつぎょうりょこうに行いけませんでした。
    Because of my cold, I couldn’t go on the graduation trip.

Unlike ~のせいで, ~がきっかけで does not express blame. It simply introduces the event or experience that started a new action or change.

FAQ

Q
How do I ask someone “What was the trigger?” in Japanese?
A

This is a great question to ask when making friends! Example:

  • 何なにがきっかけで [Action] を始はじめましたか。
    What triggered you to start [Action]?
  • [Action] を始はじめたきっかけは何なんですか。
    What was the trigger for starting [Action]?
Q
Can I use ~がきっかけで for negative events?
A

Yes, you can, as long as it describes a “turning point” or a clear change in state. For example, it is natural to say, “彼かれが嘘うそをついたのがきっかけで、別わかれました” (Him lying was the trigger for us breaking up).

However, if you simply want to blame a negative result on something without focusing on a turning point, ~のせいで is much more appropriate.

Q
What is the difference between きっかけ (kikkake) and 理由 (riyuu)?
A

理由 (riyuu) simply means a general “reason.” きっかけ (kikkake) specifically refers to the “initial trigger,” “catalyst,” or “first encounter” that started something.

If someone asks your 理由 for studying Japanese, you might say “Because I like the culture.” If they ask for the きっかけ, you would talk about the event that sparked it, like “I watched a Studio Ghibli movie 5 years ago.”


Conclusion

By using 〜がきっかけで, you can beautifully explain the origins of your habits, relationships, and passions in Japanese.

  • Use Noun + がきっかけで for events.
  • Use Verb (た-form) + の/こと + がきっかけで for actions.
  • Follow it up with a phrase that shows a change, like 〜ようになりました (came to be able to / started doing) or 〜し始めました (began doing).

Now it’s your turn! Try answering this question using this grammar point: 日本語を勉強し始めたきっかけは何ですか (What was the trigger that made you start studying Japanese?)

Ready to start speaking Japanese?
Try a gokigen japanese lesson and practise with a friendly native tutor.

Book a trial lesson $5

Online 1on1 · ~50min · First lesson only $5

  • gokigen japanese

    gokigen japanese is an online Japanese tutoring service launched in 2023. Flexible, interactive, and culture-rich, gokigen japanese supports learners at all levels with bilingual Japanese tutors.
    Over 1,000 students from 30+ countries have used our 300+ original materials, including grammar guides and cultural content.

    gokigen japanese was founded by Hirofumi Naramura, a Kyoto University graduate and former Project Leader at the Boston Consulting Group (2010–2020). The service has received recognition such as the Chiyoda CULTURE x TECH Award 2024 and acceptance into NEXs Tokyo, a startup program by the Tokyo Metropolitan Government.

  • Reviewer:

    Japanese native and language educator with about 10 years of experience teaching and developing courses and materials.
    She studied and taught in 5 different countries. Her most recent teaching role was at University of Pennsylvania in the U.S.
    Other than teaching all levels of Japanese in various settings from personal tutoring to college courses, she also has experience writing articles about Japanese language and culture and teaching English.
    Education: M.A. in Japanese pedagogy, Purdue University. B.A from the school of Japanese language and culture, Tsukuba University.