JLPT N1 Grammar 2026: 25 High-Frequency Patterns with Usage Restrictions [JLPT N1]

By Nihongo to Japan · Updated July 3, 2026

Not just meaning — N1 tests whether you know WHEN and IF a pattern can be used

N1 Grammar: The World of Nuance, Restriction & Written Language

The core challenge of N1 grammar isn't just ‘harder patterns' — it's precise mastery of nuance, usage restrictions, and context. N1's three traits: ① register restrictions (many are written/oratorical only) ② subtle tone ③ complex conjugation.

〜に至っては (as for … , it's even …)

Uses an extreme example to stress a tendency, with ‘even this …':

〜ないまでも (if not …, at least …)

Can't reach the highest standard, but at least to some degree:

〜たりとも〜ない (not even one …)

Strong negation — not even the smallest unit is allowed:

〜もさることながら (… is important, of course, but also …)

Both A and B are affirmed, but B deserves more attention:

〜をよそに (ignoring / disregarding …)

Ignores A (others' feelings) and does B anyway, with criticism:

〜ずにはいられない (can't help …)

Driven by emotion or impulse, can't help doing:

〜にほかならない (is none other than …)

A strong assertion: ‘it's this, nothing else':

〜に違いない (must be …)

Almost certain based on reasons:

〜ゆえに (because of … — written)

A formal expression of cause, more literary than から/ので:

〜いかんによって (depending on …)

〜に至るまで (all the way to / even …)

Stresses that the whole range is included:

〜とも (even if …)

No matter what A is, B holds:

N1 vs N2 Grammar

AspectN2N1
registerleans writtenhighly written/literary
emotionobjective statementsubtle emotion (criticism, emphasis)
example〜ものの〜をよそに

🖊️ Practice Quiz

Q1. 「親の反対___に、彼女は留学した。」(despite her parents' opposition)

(A) をよそ (B) にとって (C) に反して (D) にもかかわらず

Q2. 「この映画は感動せず___いられない。」(can't help being moved)

(A) て (B) に (C) は (D) には

Q3. 「一秒___無駄にできない。」(can't waste even one second)

(A) たりとも (B) さえも (C) でさえ (D) ほど

Q4. 「彼の成功は努力の結果に___ならない。」(it's none other than the result of effort)

(A) 他 (B) ほか (C) それ (D) こと

Q5. 「語彙も___ながら、文法も大切だ。」(vocabulary is important, of course, and so is grammar)

(A) さること (B) こそ (C) はじめ (D) さえ


Answer Key

1. (A) をよそ ── 〜をよそに = ignoring/disregarding: 親の反対をよそに.

2. (D) には ── 〜ずにはいられない = can't help …: 感動せずにはいられない.

3. (A) たりとも ── 〜たりとも…ない = not even one …: 一秒たりとも無駄にできない.

4. (B) ほか ── 〜に他ならない = is none other than: 努力の結果に他ならない.

5. (A) さること ── 〜もさることながら = … is important, of course, and (also) …: 語彙もさることながら.