2HONGO

Temporal Clauses

Express 'while,' 'before,' 'after,' and 'when' to connect actions in time.

Connecting Actions in Time

Japanese has several ways to express how actions relate in time — doing things simultaneously, sequentially, or anchored to a specific moment. While the te-form can chain actions in sequence (食べて寝た — ate and then slept), the patterns on this page give you more precise control over timing:

  • ながら — while doing (simultaneous)
  • 間/間に — during (a period)
  • うちに — while (before a state changes)
  • 前に — before
  • 後で — after
  • てから — after doing (strict sequence)
  • とき — when (at the time of)
Simultaneous Actions with ながら

ながら expresses doing two things at the same time. It attaches to the masu-stem (the verb minus ます):

[masu-stem] + ながら + main action

The action before ながら is the secondary (background) action, and the action after is the main (primary) action. The subject must be the same for both actions.

  • 聞きながら ← 聞きます → 聞き
  • 食べながら ← 食べます → 食べ

Examples

  • 音楽を聞きながら勉強します。

    I study while listening to music.

  • 歩きながら話しましょう。

    Let's talk while walking.

  • テレビを見ながらご飯を食べないでください。

    Please don't eat while watching TV.

  • 働きながら大学に通っています。

    I attend university while working.
During a Period with 間 / 間に

間 (あいだ) means 'during' or 'while' — it marks a time period. There are two forms:

  • 間 (without に): the secondary action continues throughout the entire period
  • 間に (with に): a one-time action happens at some point during the period

[verb plain form / noun + の] + 間 / 間に

Unlike ながら, the two actions can have different subjects.

Examples

  • 私が買い物をしている間、子どもは公園で遊んでいました。

    While I was shopping, the children were playing in the park.

  • 夏休みの間、毎日海に行きました。

    During summer break, I went to the beach every day.

  • 授業の間、静かにしてください。

    Please be quiet during class.

  • 電車に乗っている間に本を読みました。

    I read a book while (riding) on the train.
Before It Changes with うちに

うちに means 'while (a condition still holds)' — with the implication that the condition will change or disappear. It carries a sense of urgency: do it before it's too late.

[verb plain form / い-adj / な-adj + な / noun + の] + うちに

Common patterns:
  • 若いうちに — while (you're still) young
  • 忘れないうちに — before (you) forget
  • 明るいうちに — while it's still light out

Examples

  • 若いうちにたくさん旅行したい。

    I want to travel a lot while I'm still young.

  • 忘れないうちにメモしておこう。

    Let me write it down before I forget.

  • 明るいうちに帰りましょう。

    Let's go home while it's still light.

  • 元気なうちに好きなことをしたほうがいい。

    You should do what you like while you're still healthy.
Before with 前に

前に (まえに) means 'before.' The verb before 前に is always in dictionary form (not past tense), even when the main clause is past tense:

[verb dictionary form / noun + の] + 前に

  • 寝る前に — before sleeping (NOT 寝た前に)
  • 食事の前に — before the meal (noun + の + 前に)

Examples

  • 寝る前に歯を磨きます。

    I brush my teeth before going to bed.

  • 日本に行く前に日本語を勉強しました。

    I studied Japanese before going to Japan.

  • 食事の前に手を洗ってください。

    Please wash your hands before the meal.

  • 出かける前に天気を確認しましょう。

    Let's check the weather before going out.
After with 後で

後で (あとで) means 'after.' The verb before 後で uses the ta-form (past tense):

[verb ta-form / noun + の] + 後で

  • 食べた後で — after eating
  • 授業の後で — after class

後で implies a looser sequence — the second action happens sometime after the first, but not necessarily immediately.

Examples

  • 仕事が終わった後で、飲みに行きましょう。

    After work ends, let's go for drinks.

  • ご飯を食べた後で散歩します。

    I'll take a walk after eating.

  • 授業の後で先生に質問しました。

    I asked the teacher a question after class.

  • 映画を見た後で感想を話しました。

    We talked about our impressions after watching the movie.
After Doing with てから

てから means 'after doing' with a stronger sense of strict sequence — the second action happens only after the first is completed. It attaches to the te-form:

[verb te-form] + から

Compare with 後で:
  • 食べた後で散歩する — I'll walk after eating (loose timing)
  • 食べてから散歩する — I'll eat first, then walk (strict order)

てから emphasizes that you must finish the first action before starting the second.

Examples

  • 手を洗ってから食べてください。

    Please wash your hands and then eat.

  • よく考えてから決めます。

    I'll think carefully and then decide.

  • 日本に来てからもう三年になります。

    It's already been three years since I came to Japan.

  • 卒業してから何をするつもりですか。

    What do you plan to do after graduating?
When / At the Time of with とき

とき means 'when' or 'at the time of.' It connects a time-setting clause to a main clause:

[verb plain form / い-adj / な-adj + な / noun + の] + とき

The tense of the verb before とき matters:
  • Dictionary form + とき: the action hasn't happened yet at that point — 行くとき (when about to go / on the way there)
  • Ta-form + とき: the action has already happened — 行ったとき (when I went / after arriving)

This tense distinction can change the meaning significantly.

Examples

  • 日本にいたとき、毎日ラーメンを食べました。

    When I was in Japan, I ate ramen every day.

  • 子どものとき、よく川で遊びました。

    When I was a child, I often played in the river.

  • 困ったときは、いつでも連絡してください。

    Whenever you're in trouble, please contact me anytime.

  • 暇なとき、何をしますか。

    What do you do when you're free?
Temporal Clauses | 2hongo