努力に努力を重ねて、ついに合格した。
に～を重ねて means success after continuous (effort, work, adjustments, etc.). It is a JLPT N1 Japanese grammar pattern used to express that a favourable outcome was reached only after piling up repeated actions or qualities, most often effort, hardship, or meticulous revisions.
This grammar point often appears in formal speeches, business reports, newspaper editorials, and JLPT N1 reading passages. If you want to emphasize that a result was won through sustained, often painstaking accumulation, に～を重ねて is the pattern you need.
What does に～を重ねて mean?
Use に～を重ねて when you want to express that a final success was preceded by repeated, stacked instances of the same effort, work, or process. The pattern highlights the accumulation as the direct cause of the positive result.
Natural translations include:
- by piling up [effort] after [effort]
- through repeated [work]
- after successive [adjustments]
The best translation depends on the sentence, but always keep the core image: layers upon layers of something leading to a breakthrough.
How to form に～を重ねて
The pattern uses the same noun twice to stress intensity, although occasionally two related nouns appear.
The verb 重ねる means “to stack, to layer, to repeat.” The て‑form (重ねて) connects the piling action to the result clause. Noun A and Noun B are usually the same word — most commonly 努力 (effort), 苦労 (hardship), 失敗 (failure), or 調整 (adjustment) — to underline that the action was performed time after time.
Alternate variations:
- に～を重ねてきた (emphasizing a long history)
- に～を重ねた結果 (explicitly stating “as a result”)
- に～を重ねることで (describing a method)
In JLPT questions, the wrong answer choices often use a similar meaning but attach it to the wrong structure, e.g., omitting the second noun or misusing the particle.
When is に～を重ねて used?
Use に～を重ねて in situations like:
- narrating a person’s journey to success after long-term dedication
- describing iterative improvements in a project or product
- highlighting the gradual, compounded nature of achievement in formal contexts
Tone and register:
- formal and written; common in speeches, success stories, and news reports
- slightly dramatic, carrying a sense of earned reward
- rare in casual conversation unless someone is recounting a major accomplishment
In JLPT N1 reading, you’ll often see it paired with words like ついに, ようやく, or やっと to underscore the long-awaited outcome.
に～を重ねて example sentences
努力に努力を重ねて、遂に夢を叶えた。
She piled effort upon effort and at last made her dream come true.
effort
苦労に苦労を重ねて築いた地位だ。
This is a position built through hardship after hardship.
hardship
失敗に失敗を重ねて、製品の品質が向上した。
By repeating failure after failure, the product’s quality improved.
iteration
調整に調整を重ねて、完璧な演奏になった。
After endless adjustments, the performance became flawless.
adjustment
議論に議論を重ねて、最終的に合意に達した。
Through discussion after discussion they finally reached an agreement.
discussion
研究に研究を重ねた結果、新薬が誕生した。
As a result of layering research upon research, a new drug was born.
research
After reading each sentence, ask what job に～を重ねて is doing: it’s stacking repeated actions until a threshold is crossed.
Nuance of に～を重ねて
The key nuance is cumulative effort finally rewarded. The pattern doesn’t describe a single attempt; it paints a picture of sustained, layered endeavour. Even when the repeated noun is neutral like 調整 (adjustments) or 議論 (discussions), the grammar carries an undertone of labour — something you wouldn’t wish on anyone casually.
A pattern may look simple, but it can signal the writer’s admiration, respect for perseverance, or even relief after a gruelling process. In contrast, a simpler success expression like 「～て成功した」 does not carry this weight.
に～を重ねて vs に～を積み重ねて
Both に～を重ねて and に～を積み重ねて evoke the image of stacking, but they differ in focus.
Quick contrast:
Is the sentence formal and result‑driven, or does it narrate the process?
Common mistakes with に～を重ねて
The two nouns should be the same (or closely related) to express repetition. Mixing concepts like “effort” and “success” breaks the parallelism and sounds unnatural.
The pattern implies repetition over a period. Using it with a one‑off event contradicts the core nuance.
Don’t confuse 重ねて (to layer) with 重んじて (to respect). They look similar but are completely different verbs.
A helpful practice method is to write one sentence with に～を重ねて, then rewrite it with に～を積み重ねて.
Is に～を重ねて on the JLPT?
Yes. に～を重ねて is regularly featured as JLPT N1 grammar.
That means learners should be able to:
Expect に～を重ねて to appear in the vocabulary/grammar section or within a longer reading passage.
Practice questions for に～を重ねて
Learning path for に～を重ねて
To learn に～を重ねて efficiently, start with its formation, then compare it with similar patterns, and finally practice in context.
Related grammar to review next
- にあって — because it also sets a formal background against which someone perseveres, often seen in narratives about effort and circumstance.
- に値する — because it naturally follows achievement: after you pile up effort, you may hear that the outcome に値する (is worthy).
- にひきかえ — because it contrasts a hard‑earned success with an opposite situation, a common rhetorical pair.
- に — because mastering the particle に is fundamental to forming and understanding this and many other N1 patterns.
Learn に～を重ねて with Hane
If you want to review に～を重ねて together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.
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FAQ about に～を重ねて
What does に～を重ねて (ni ~ o kasanete) mean in Japanese?
に～を重ねて (ni ~ o kasanete) means “success after continuous (effort, work, adjustments, etc.)”. It is JLPT N1 grammar. Use に～を重ねて when you want to express that a final success was preceded by repeated, stacked instances of the same effort, work, or process. The pattern highlights the *accumulation* as the direct cause of the positive result.
How do you form に～を重ねて (ni ~ o kasanete)?
The pattern uses the same noun twice to stress intensity, although occasionally two related nouns appear. Noun A に Noun B を 重ねて The verb 重ねる means “to stack, to layer, to repeat.” The て‑form (重ねて) connects the piling action to the result clause.
What is the difference between に～を重ねて and に～を積み重ねて?
に～を重ねて: emphasizes repetition of the same action; the result is the highlight. に～を積み重ねて: focuses on the incremental build‑up itself; literally “pile up and stack”.
What is an example sentence with に～を重ねて (ni ~ o kasanete)?
努力に努力を重ねて、遂に夢を叶えた。 — She piled effort upon effort and at last made her dream come true.