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Definition
The grammar pattern "V-る / N + までに" is used to specify a deadline or time limit by which an action must be completed. It emphasizes the completion of an action within a certain timeframe. This pattern is often used in formal or business settings to convey a sense of urgency or importance. It can be used with the dictionary form of verbs or directly with nouns, making it a versatile and useful pattern in Japanese grammar.
Structure
| Form | Pattern | Example |
|---|---|---|
| V-る (Verb in -ru form) | V-る + までに | 勉強するまでに |
| N (Noun) | N + までに | 会議までに |
| V-ます (Verb in -masu form) | V-ます + までに | 作業を完了するまでに |
Examples
明日レポートを出してください。
Ashita repono o dashite kudasai.
Please submit the report by tomorrow.
明日 (tomorrow), レポートを出して (submit the report), ください (please)
会議が準備を終わらせましょう。
Kaigi ga junbi o owari saseru mashou.
Let's finish preparing for the meeting.
会議が (the meeting), 準備を終わらせ (finish preparing), ましょう (let's)
暗く家に帰りましょう。
Kuraku ie ni kaerimashou.
Let's go home when it gets dark.
暗く (when it gets dark), 家に帰る (go home), ましょう (let's)
プロジェクトを完了するまでに1週間は必要です。
Purojekuto o kansei suru made ni ichi juugann wa hitsuyou desu.
It will take at least one week to complete the project.
プロジェクトを完了する (complete the project), までに (by), 1週間は (at least one week), 必要です (is necessary)
Context
This pattern is often used in formal or business settings to convey a sense of urgency or importance. It can be used with the dictionary form of verbs or directly with nouns. Be careful not to confuse it with the pattern "made" (until), which describes a continuous action up to a point.
Watch out
The pattern 'made' (until) describes a continuous action up to a point, whereas 'までに' emphasizes the completion of an action within a certain timeframe.
Using 'ni' for a continuous action can lead to incorrect meanings, such as 'sleep until 5' instead of 'sleep by 5'.
Using past tense before 'までに' can lead to incorrect meanings or grammatical errors.
Strategy
Pay attention to the context and the meaning of the sentence. Make sure to use the correct pattern to convey the intended meaning. Be careful not to confuse it with other patterns, such as 'made' (until).
In context
Worked examples drawn from JLPT N4 test-style questions. Each sentence shows V-る / N + までに used correctly, with a brief note on what the pattern is doing.
明日 までに レポートを出してください。
Pattern used: までに
'Made ni' indicates the deadline for submission, whereas 'made' would mean submitting continuously.
会議が 始まるまでに 準備を終わらせましょう。
Pattern used: 始まるまでに
The preparation must be finished before the deadline (the start of the meeting).
暗く なるまでに 家に帰りましょう。
Pattern used: なるまでに
'Made ni' marks the point (getting dark) as the deadline for returning home.
Interactive
明日 ______ レポートを出してください。
Adaptive practice
Our adaptive engine will quiz you on this grammar pattern and track your progress toward mastery.