KotoQuest

Katakana represents the exact same sounds as Hiragana but uses sharp, straight strokes. It is used for foreign names, places, and loanwords (e.g., カメラ - kamera for camera).

By adding quotation marks (dakuten ゛) or small circles (handakuten ゜) to the upper right of a hiragana or katakana, you change the consonant sound:

• K-row (か) + ゛ = G-row (が - ga)
• S-row (さ) + ゛ = Z-row (ざ - za)
• T-row (た) + ゛ = D-row (だ - da)
• H-row (は) + ゛ = B-row (ば - ba)
• H-row (は) + ゜ = P-row (ぱ - pa)

We combine Hiragana from the 'i' column (ki, shi, chi, etc.) with small versions of ゃ (ya), ゅ (yu), ょ (yo) to make sounds like きゃ (kya) or しゅ (shu).

A small っ (tsu) creates a brief double consonant pause in speech (e.g., さっき - sakki: a moment ago).

Drill these sounds in the Kana Charts, then trace them by hand on the Canvas Writer.

Counting up to 99 is mathematical:

• 11 = Ten + One = じゅういち (juu-ichi)
• 20 = Two + Ten = にじゅう (ni-juu)
• 45 = Four + Ten + Five = よんじゅうご (yon-juu-go)
• 100 is ひゃく (hyaku)

Kanji represent whole words or concepts. Learn these pictograms:

Test these numbers and kanji with Flashcards, then put them to work in the Quest Arena.

English: I read books.

Japanese: わたしは ほんを よみます (Watashi wa hon o yomimasu) → I [Topic] Book [Object] Read.

Particles are small words added after nouns to indicate their grammatical role:

Snap these particles into place in the Sentence Builder, or see how they map across languages in the Trilingual Bridge.

All Japanese verbs in their dictionary (base) form end in a 'u' sound. They fall into three groups:

• Ru-verbs (Group 2): End in -iru or -eru. (e.g., たべる - taberu: to eat, みる - miru: to watch).
• U-verbs (Group 1): End in other -u sounds. (e.g., のむ - nomu: to drink, いく - iku: to go, はなす - hanasu: to speak).
• Watch out: not every -iru/-eru verb is a ru-verb — a handful are u-verbs you just memorize: かえる (kaeru — to return), はしる (hashiru — to run), はいる (hairu — to enter), きる (kiru — to cut), いる (iru — to need).
• Irregular Verbs (Group 3): Only two! する (suru: to do) and くる (kuru: to come).

To talk politely, change verbs to the ~ます (~masu) suffix. Conjugation formulas:

• Past Affirmative: Replace ~ます with ~ました (~mashita). E.g., たべました (tabemashita — I ate).
• Past Negative: Replace ~ます with ~ませんでした (~masendeshita). E.g., たべませんでした (tabemasendeshita — I did not eat).

Take these conjugations into the Quest Arena, then reinforce the vocabulary with Flashcards.

• I-adjectives: end in the hiragana い (i). For example おいしい (oishii: delicious) or おおきい (ookii: big). They sit straight in front of a noun: おいしいすし (delicious sushi).
• Na-adjectives: need a な (na) before the noun they describe. For example しずか (shizuka: quiet) → しずかな部屋 (shizuka na heya: a quiet room).

Quiz yourself on these phrases with Flashcards, then face them live in the Quest Arena.

Read the dialogue below and click the speaker icons to hear it spoken:

Customer:

すみません、メニューをください。
Sumimasen, menyuu o kudasai.
(Excuse me, please give me a menu.) Play

Waiter:

はい、どうぞ。
Hai, douzo.
(Yes, here you are.) Play

Customer:

これはいくらですか。
Kore wa ikura desu ka.
(How much is this?) Play

Waiter:

それは千円です。
Sore wa sen en desu.
(That is 1000 yen.) Play

Customer:

じゃあ、これをください。
Jaa, kore o kudasai.
(Well then, please give me this.) Play

Assemble a reply of your own in the Sentence Builder, then try the full exchange live in the Quest Arena.

Exception: いく → いって (iku → itte) (not いいて).

• Request: ～てください — みてください (mite kudasai — please look)
• Permission: ～てもいいです — たべてもいいです (tabete mo ii desu — you may eat)
• Progressive / state: ～ています — よんでいます (yonde imasu — am reading)
• Prohibition: ～てはいけません — はいってはいけません (haitte wa ikemasen — you must not enter)
• Linking actions: おきて、たべて、いきます (okite, tabete, ikimasu — I get up, eat, and go)

Face te-form questions head-on in the Quest Arena, then chain your own sentences in the Sentence Builder.

• る-verbs: drop る, add ない — みる (miru — to see) → みない (minai)
• う-verbs: final -u → -a + ない — のむ (nomu — to drink) → のまない (nomanai) (う becomes わ: かう (kau — to buy) → かわない (kawanai))
• Irregular: する (suru — to do) → しない (shinai), くる (kuru — to come) → こない (konai), ある (aru — to exist) → ない (nai)

Tip: casual speech drops です／か — たべる？ (taberu?) (rising tone) means "gonna eat?"

Switch between polite and plain in the Quest Arena, then build casual sentences in the Sentence Builder.

Take the plain negative ～ない and change い → かった:

• たべない (tabenai) → たべなかった (tabenakatta) (didn't eat)
• いかない (ikanai) → いかなかった (ikanakatta) (didn't go)
• い-adjectives too: たかい → たかくなかった (takai → takaku nakatta — expensive → wasn't expensive)

Put past-tense forms to the test in the Quest Arena, then build past-tense sentences in the Sentence Builder.

* People are irregular: 1人 ひとり (hitori), 2人 ふたり (futari), then 3人 さんにん (san-nin)… Sounds also shift with 本/匹 (いっぽん ippon, さんぼん sanbon) — learn those by ear.

Quiz yourself on counters with Flashcards, then count your way through the Quest Arena.

• あげる — I/someone gives outward. わたしは ともだちに プレゼントを あげる. (Watashi wa tomodachi ni purezento o ageru. — I give my friend a present.)
• くれる — someone gives to me. ともだちが わたしに プレゼントを くれる. (Tomodachi ga watashi ni purezento o kureru. — My friend gives me a present.)
• もらう — I receive (giver marked に／から). わたしは ともだちに プレゼントを もらう. (Watashi wa tomodachi ni purezento o morau. — I receive a present from my friend.)

Rule of thumb: if the gift comes to you, it is くれる or もらう — never あげる.

Build give-and-receive sentences in the Sentence Builder, then test the right verb choice in the Quest Arena.

• にほんごをはなす (nihongo o hanasu — speak Japanese) → にほんごがはなせる (nihongo ga hanaseru — can speak Japanese)
• かんじがよめる (kanji ga yomeru — can read kanji)
• Casual speech often drops the ら: たべられる (taberareru) → たべれる (tabereru) ("ra-less" form). This ra-nuki is common in everyday speech, but it's still considered nonstandard in writing and on exams.

Test your "can-do" forms in the Quest Arena, then build sentences with them in the Sentence Builder.

• ～たら allows any main clause — requests, invitations, commands: いえにかえったら、でんわしてください (ie ni kaettara, denwa shite kudasai — when you get home, please call)
• ～と describes automatic or general results — the main clause can't be a request, command, or invitation: はるになると、さくらがさきます (haru ni naru to, sakura ga sakimasu — when spring comes, cherry blossoms bloom)
• Both can mean "when" for things certain to happen: みぎにまがると、ぎんこうがあります (migi ni magaru to, ginkou ga arimasu — if/when you turn right, there is a bank)

Try both conditionals in the Quest Arena, then build your own if/when sentences in the Sentence Builder.

This negative ば-form is exactly what ～なければならない ("must") is built on.

• Nouns and な-adjectives attach directly, no だ: げんきなら (genki nara — if [you're] energetic), never げんきだなら.
• なら answers a topic the other person just raised: A: にほんへいきます。 B: にほんへいくなら、パスポートがひつようです。 (nihon e iku nara, pasupooto ga hitsuyou desu — if you're going to Japan, you'll need a passport)
• Unlike ～たら/～と/～ば, the outcome can logically come before the なら-clause in time — it's commenting on the premise, not describing a strict sequence.

Repeat the verb: ～ば form + plain form + ほど.

• たべればたべるほど、ふとります (tabereba taberu hodo, futorimasu — the more you eat, the fatter you get)

Drill ば and なら in the Quest Arena, then check your grammar notes on the Grammar Bridge.

Note: る-verb passive and potential (N4·6) share the same form — context tells them apart.

• The "by ~" agent is marked with に, or によって for creative/impersonal works.
• わたしはせんせいにほめられた (watashi wa sensei ni homerareta — I was praised by the teacher)
• このほんはなつめそうせきによってかかれた (kono hon wa Natsume Souseki ni yotte kakareta — this book was written by Natsume Souseki)

• Uniquely Japanese: even verbs with no direct object can take the passive to show the speaker was inconvenienced by someone else's action.
• あめにふられた (ame ni furareta — I got rained on [and it was a bother])
• ともだちにこられて、べんきょうできなかった (tomodachi ni korarete, benkyou dekinakatta — a friend came over [on me] and I couldn't study)
• The English translation rarely captures the nuance — think "I suffered from X happening," not a literal translation.

Spot the passive agent in the Quest Arena, then build a few suffering-passive sentences yourself in the Sentence Builder.

• はははこどもにやさいをたべさせた (haha wa kodomo ni yasai o tabesaseta — the mother made/had the child eat vegetables) — transitive verb: the person forced takes に.
• せんせいはがくせいをはやくかえらせた (sensei wa gakusei o hayaku kaeraseta — the teacher made the students go home early) — intransitive verb かえる: the person forced takes を.
• Context and tone decide "make" (forceful) vs "let" (permissive): どうぞやすませてください (douzo yasumasete kudasai — please let me rest) is clearly permissive.

• Build it from the causative stem + られる: たべさせる → たべさせられる (tabesaseru → tabesaserareru — was made to eat).
• う-verbs often contract ～せられる to ～される: のませられる → のまされる (nomaserareru → nomasareru) — both forms are correct; the contraction is more common in speech.
• わたしはははにやさいをたべさせられた (watashi wa haha ni yasai o tabesaserareta — I was made to eat vegetables by my mother [and I didn't want to])

Untangle causative vs causative-passive sentences in the Quest Arena, then drill the forms with Flashcards.

• potential/dictionary form + ようになる — a gradual, natural change over time.
• かんじがよめるようになった (kanji ga yomeru you ni natta — I've come to be able to read kanji [I couldn't before])
• まいにちにほんごをはなすようになりました (mainichi nihongo o hanasu you ni narimashita — I've come to speak Japanese every day)

• dictionary/ない-form + ことになる — announces a decision made by circumstances, a group, or someone else — not the speaker personally.
• らいげつ、とうきょうにてんきんすることになった (raigetsu, Tokyo ni tenkin suru koto ni natta — it's been decided that I'll transfer to Tokyo next month)

• ～ようにする: dictionary/ない-form + ようにする — an ongoing conscious effort or habit. まいにちうんどうするようにしています (mainichi undou suru you ni shiteimasu — I make it a point to exercise every day)
• ～ことにする: dictionary/ない-form + ことにする — a one-time personal decision, made by the speaker's own will. かいしゃをやめることにした (kaisha o yameru koto ni shita — I've decided to quit the company)

Sort out なる vs する in the Quest Arena, then check your understanding on the Grammar Bridge.

• Hearsay そうだ never drops だ before nouns/な-adjectives: これはぺんだそうです (kore wa pen da sou desu — I heard this is a pen).
• Appearance そうだ drops だ entirely and attaches straight to the stem: おいしい → おいしそう (oishii → oishisou — looks delicious); げんき → げんきそう (genki → genkisou — looks well).
• Two irregular appearance stems: いい → よさそう (ii → yosasou, not iisou); ない → なさそう (nai → nasasou).

• plain form (noun without だ) + らしい — reports something heard, usually with more distance/uncertainty than そうだ, often from general rumor rather than a direct source.
• たなかさんはらいげつけっこんするらしいです (Tanaka-san wa raigetsu kekkon suru rashii desu — I hear Tanaka is getting married next month)
• Also means "typical of / just like": おとこらしい (otoko rashii — manly, like a "real man").

• Both mean "seems/looks like," based on observation or comparison — みたい is casual, ようだ is more formal/written.
• Nouns/な-adjectives: みたい attaches directly (あめみたい); ようだ needs の／な (あめのようだ, げんきなようだ).
• あのひとはがくせいみたいです (ano hito wa gakusei mitai desu — that person seems to be a student)
• かれはびょうきのようだ (kare wa byouki no you da — he seems to be sick)

Tell hearsay apart from appearance in the Quest Arena, then quiz yourself on all four with Flashcards.

• Prepares something ahead of time, or leaves something as-is for a future benefit.
• ビールをかっておく (biiru o katte oku — buy beer in advance [for the party later])
• Casual speech contracts ～ておく to ～とく: かっておく → かっとく (katte oku → kattoku).

• Emphasizes something is finished completely, often with a nuance of regret or unintentional action.
• しゅくだいをやってしまった (shukudai o yatte shimatta — I went and finished the homework)
• Casual contraction: ～てしまう → ～ちゃう (or ～でしまう → ～じゃう): たべてしまう → たべちゃう (tabete shimau → tabechau).

• ～てある (transitive verb + ある): a state left behind on purpose by someone. まどがあけてある (mado ga akete aru — the window has [intentionally] been left open)
• Compare ～ている: まどがあいている (mado ga aiteiru — the window is open) — a simple state, no emphasis on who left it that way or why.
• ～てみる: "try doing" something to see what happens. たべてみる (tabete miru — try eating [it])

Pick the right te-form extension in the Quest Arena, then use them in your own sentences with the Sentence Builder.

Honorific verbs elevate other people's actions (a teacher, a customer, your boss); humble verbs lower your own actions to show the listener respect. Never mix the two for the same person.

• いらっしゃる, おっしゃる, なさる, and くださる all take ～います, not ～ります: いらっしゃる → いらっしゃいます (irassharu → irasshaimasu), おっしゃる → おっしゃいます (ossharu → osshaimasu).
• せんせいはいついらっしゃいますか (sensei wa itsu irasshaimasu ka — when will the teacher arrive?)
• しゃちょうはなんとおっしゃいましたか (shachou wa nan to osshaimashita ka — what did the president say?)

• たなかともうします (Tanaka to moushimasu — I am called Tanaka [humble self-introduction])
• わたしはあしたまいります (watashi wa ashita mairimasu — I will go/come tomorrow [humble])
• どうぞめしあがってください (douzo meshiagatte kudasai — please go ahead and eat [honorific, said to a guest])

Match honorific and humble pairs in the Quest Arena, then review the full keigo table with Flashcards.

• Plain form (any tense) + ものの concedes a fact, then states an unexpected or disappointing result — more formal/written than けれども.
• にほんごをさんねんべんきょうしたものの、まだうまくはなせない (nihongo o sannen benkyou shita mono no, mada umaku hanasenai — although I've studied Japanese for three years, I still can't speak it well)
• あたまではわかっているものの、なかなかじっこうできない (atama de wa wakatteiru mono no, nakanaka jikkou dekinai — although I understand it in my head, I can't easily put it into practice)

• Plain form + ものだから gives a reason that doubles as an excuse, usually followed by an apology or explanation — common in spoken Japanese.
• でんしゃがおくれたものだから、ちこくしてしまいました (densha ga okureta mono da kara, chikoku shite shimaimashita — the train was late, so [that's why] I ended up being late)
• Casual speech contracts it: ものだから → もんだから (mono da kara → mon da kara).

Spot the three もの endings in the Quest Arena, then drill them with Flashcards.

• Plain form + わけだ states a conclusion that logically follows from what was just said or observed.
• さんねんかんにほんにすんでいた。だから、にほんごがじょうずなわけだ (san-nen kan nihon ni sundeita. dakara, nihongo ga jouzu na wake da — they lived in Japan for three years. No wonder their Japanese is good)
• どうりでさむいわけだ、ゆきがふっている (douri de samui wake da, yuki ga futteiru — no wonder it's cold, it's snowing)

• Plain form + わけではない partially denies an assumption without rejecting it outright.
• きらいなわけではないが、あまりたべたくない (kirai na wake de wa nai ga, amari tabetakunai — it's not that I dislike it, but I don't really want to eat it)
• ぜんぶわかったわけではない (zenbu wakatta wake de wa nai — it's not that I understood everything)

• Dictionary form + わけにはいかない: a social, moral, or circumstantial obligation blocks an action, even if you'd like to do it.
• あしたはしけんがあるから、きょうはあそぶわけにはいかない (ashita wa shiken ga aru kara, kyou wa asobu wake ni wa ikanai — I have an exam tomorrow, so I can't just go play today)
• The negative twist, ないわけにはいかない ("can't afford not to"), gets its own spotlight next lesson.

Untangle わけだ from わけではない in the Quest Arena, then check your notes on the Grammar Bridge.

～ずにはいられない is built the same way — swap ざるを得ない for ずにはいられない (irregular する → せずにはいられない, same せ as above).

• きゅうりょうがやすいので、やめざるをえない (kyuuryou ga yasui node, yamezaru o enai — the pay is low, so I have no choice but to quit)
• じょうしにいわれたら、ざんぎょうせざるをえない (joushi ni iwaretara, zangyou sezaru o enai — if the boss tells you to, you have no choice but to work overtime)

• ～ずにはいられない is an emotional impulse too strong to resist: あのえいがをみると、なかずにはいられない (ano eiga o miru to, nakazu ni wa irarenai — when I watch that movie, I can't help but cry)
• ～ないわけにはいかない (ない-form + わけにはいかない) is a social or moral duty you can't skip: せんせいによばれたら、いかないわけにはいかない (sensei ni yobaretara, ikanai wake ni wa ikanai — if the teacher calls you, you can't not go)
• The difference: ざるを得ない points at "no realistic alternative"; ないわけにはいかない points at "duty says I must."

Drill all three "no choice" patterns in the Quest Arena, then build your own with the Sentence Builder.

• Plain form / noun + にもかかわらず states a fact, then a surprising or contrary result — formal, common in writing.
• あめにもかかわらず、おおぜいのひとがきた (ame ni mo kakawarazu, oozei no hito ga kita — despite the rain, a lot of people came)
• いっしょうけんめいべんきょうしたにもかかわらず、しけんにおちてしまった (isshoukenmei benkyou shita ni mo kakawarazu, shiken ni ochite shimatta — despite studying hard, I failed the exam)

• Noun / plain form + にしては judges someone or something against the standard implied by a category: "for a ~, this is surprising."
• こどもにしては、よくかんじをしっている (kodomo ni shite wa, yoku kanji o shitteiru — for a kid, they know a lot of kanji)
• はじめてにしては、じょうずにできた (hajimete ni shite wa, jouzu ni dekita — for a first try, it went well)

• Noun (+の) / な-adjective (+な) / plain form + わりに(は): the result doesn't match what the condition would normally predict — unlike にしては, no built-in "standard" is required.
• このみせはねだんがたかいわりには、あまりおいしくない (kono mise wa nedan ga takai wari ni wa, amari oishikunai — considering how expensive this restaurant is, it's not very tasty)
• ねんれいのわりに、わかくみえる (nenrei no wari ni, wakaku mieru — they look young for their age)

Tell the three mismatches apart in the Quest Arena, then review the nuance notes on the Grammar Bridge.

• ます-stem or noun + がち marks a recurring tendency, usually toward something undesirable.
• かれはやくそくをわすれがちだ (kare wa yakusoku o wasuregachi da — he tends to forget his promises)
• このごろ、くもりがちのてんきがつづいている (kono goro, kumorigachi no tenki ga tsuzuiteiru — lately, the weather has tended to be cloudy)
• Common set phrase: びょうきがち (byoukigachi — sickly, prone to getting ill).

• ます-stem or noun + 気味: a slight current tendency or feeling, milder and more physical/mental than がち.
• さいきん、つかれぎみだ (saikin, tsukaregimi da — I've been feeling a bit tired lately)
• かぜぎみなので、きょうははやくねます (kazegimi na node, kyou wa hayaku nemasu — I'm feeling a bit like I have a cold, so I'll go to bed early today)

• い-adjective stem / noun / ます-stem + っぽい gives an impression of a quality, often slightly negative or casual.
• わすれっぽいひとですね (wasureppoi hito desu ne — you're a forgetful person, aren't you)
• かのじょはこどもっぽい (kanojo wa kodomoppoi — she's childish)
• みずっぽいスープ (mizuppoi suupu — watery soup)

Quiz yourself on all three tendencies with Flashcards, then use them in your own sentences with the Sentence Builder.

• For a purely gradual, parallel change, all three can often substitute for one another: ぶっかがあがるにつれて、せいかつがくるしくなる (bukka ga agaru ni tsurete, seikatsu ga kurushiku naru — as prices rise, life gets harder) — に伴って or に従って would work here too with little change in meaning.
• Only に伴って naturally attaches to event nouns describing an accompanying consequence: たいふうのせっきんにともなって、でんしゃがとまった (taifuu no sekkin ni tomonatte, densha ga tomatta — with the typhoon's approach, trains stopped)
• Only に従って extends naturally to "in accordance with" a rule, order, or instruction — not just gradual change.

Match the right correlated-change pattern in the Quest Arena, then review the nuance notes on the Grammar Bridge.

である style still uses plain-form verbs and adjectives (たべる、たかい) — only the copula changes. Never mix ですます and である within the same piece of writing.

• ～により (formal for によって／で) marks a cause, means, or method: たいふうにより、おおくのいえがこわれた (taifuu ni yori, ooku no ie ga kowareta — due to the typhoon, many houses were destroyed)
• ～における (formal for での／においての) specifies a time, place, or field a statement applies to, and attaches directly to a noun: にほんにおけるしょうしかもんだい (nihon ni okeru shoushika mondai — the declining-birthrate problem in Japan)

• Noun + をめぐって means "concerning/over" a contested topic — almost always paired with a dispute, discussion, or debate.
• あたらしいほうりつをめぐって、はげしいぎろんがつづいている (atarashii houritsu o megutte, hageshii giron ga tsuzuiteiru — fierce debate continues over the new law)

Spot written-style grammar in the Grammar Bridge, then quiz yourself with Flashcards.

• To a coworker, inside the company: ぶちょうはもういらっしゃいました (buchou wa mou irasshaimashita — the manager has already arrived) — honorific, since everyone here is "inside."
• To an outside client, about the very same manager: ぶちょうはもうまいりました (buchou wa mou mairimashita — the manager has already arrived) — humble, because from the client's view your manager is now "your side"; rank inside the company no longer matters.
• This flip trips up learners more than any single verb form — the rule is about the listener, not the person being talked about.

• です → でございます: こちらがしりょうでございます (kochira ga shiryou de gozaimasu — here is the material)
• ある → ございます: おてあらいはあちらにございます (otearai wa achira ni gozaimasu — the restroom is over there)
• いる → おる (humble, own side): たなかはただいまがいしゅつしております (Tanaka wa tadaima gaishutsu shite orimasu — Tanaka is currently out of the office)
• いく／くる → まいる (humble, own side): すぐにまいります (sugu ni mairimasu — I'll be right there)

• お + verb ます-stem + します (or ご + verbal noun + します for many する-verbs) humbly offers to do something for the listener. Watch the honorific お doubling with an お-initial stem: おくる → おくり → おおくりします (okuru → okuri → o okuri shimasu — I will send it to you), not おくりします.
• ごれんらくします (go renraku shimasu — I will contact you)
• Standard phone/email openers and closers: いつもおせわになっております (itsumo osewa ni natte orimasu — thank you always for your support); よろしくおねがいいたします (yoroshiku onegai itashimasu — thank you in advance)

Practice uchi/soto switching in the Quest Arena, build your own business phrases in the Sentence Builder, then review the full set on the Grammar Bridge.

Famous line: 人は生きんがために食う (hito wa ikin ga tame ni kuu — people eat in order to live) — the reverse of the usual "live to eat."

• ない-form, drop ない + ずして — する becomes せずして, never しずして.
• 努力せずして成功はあり得ない (doryoku sezu shite seikou wa arienai — without effort, success is impossible)
• Common in rhetorical questions built as "～ずして何であろうか" (sezu shite nan de arou ka — if this isn't ~, then what is?), affirming something emphatically by denying its alternative.

• Dictionary form + べからず — the negative of べし (must/should); する becomes すべからず, the one common irregular exception.
• 芝生に入るべからず (shibafu ni hairu bekarazu — do not enter the lawn) — the classic wording on old signs and notices.
• More common today as the plain notice 立入禁止, but べからず still appears on historical signs, in mottos, and in formal writing as a stronger, more literary alternative to ～べきではない.

Spot these archaic negatives in the Quest Arena, then check the classical auxiliaries behind them on the Grammar Bridge.

• Attaches to a plain-form clause describing what should have happened — then leaves the speaker's frustration or regret hanging, since reality went otherwise.
• すぐに謝ればいいものを、彼は意地を張った (sugu ni ayamareba ii mono o, kare wa iji o hatta — he should have just apologized right away, but he stubbornly refused)
• Often the clause after ものを is dropped entirely, leaving the regret implied: 早く言ってくれればよかったものを…(hayaku itte kurereba yokatta mono o… — if only you'd told me sooner…)

• い-adjective / な-adjective stem (no な, e.g. 残念ながら) / noun / verb ます-stem + ながら(も) — different from the simultaneous-action ながら from N4; here it concedes a contrast within a single subject.
• 狭いながらも、幸せな家庭を築いた (semai nagara mo, shiawase na katei o kizuita — despite being small, [they] built a happy home)
• 知っていながら、彼は黙っていた (shitte inagara, kare wa damatte ita — even though he knew, he stayed silent).

• Noun / plain form + といえども — grants a point fully, then insists it changes nothing; common in essays, speeches, and legal-style argument.
• 子供といえども、責任は免れない (kodomo to iedomo, sekinin wa manugarenai — even though [he's] a child, [he] cannot escape responsibility)
• プロといえども、失敗することはある (puro to iedomo, shippai suru koto wa aru — even professionals sometimes fail).

Untangle regret from concession in the Quest Arena, then drill all three forms with Flashcards.

• Dictionary form + なり — the second action follows the first almost instantly, and is often unexpected; the subject of both clauses is normally the same person.
• 彼は帰宅するなり、部屋に閉じこもった (kare wa kitaku suru nari, heya ni tojikomotta — as soon as he got home, he shut himself in his room)

• Dictionary form + や否や — more literary than なり, common in narrative writing; the two clauses can involve different subjects.
• ベルが鳴るや否や、生徒たちは教室を飛び出した (beru ga naru ya ina ya, seitotachi wa kyoushitsu o tobidashita — the moment the bell rang, the students dashed out of the classroom)

• Dictionary form / た-form + そばから — unlike なり and や否や, this describes a repeated, often frustrating pattern where the second action keeps undoing the first.
• 片付けるそばから、子供が散らかす (katazukeru soba kara, kodomo ga chirakasu — no sooner do I tidy up than the kids make a mess again)
• 習ったそばから忘れてしまう (naratta soba kara wasurete shimau — I forget things as fast as I learn them).

Tell one-time immediacy from repeating cycles in the Quest Arena, then build your own なり and そばから sentences in the Sentence Builder.

• Noun / verb dictionary form + ともなると(なれば) — a special level, time, or status is reached, and things naturally follow from it.
• 大企業の社長ともなると、責任は非常に重い (dai kigyou no shachou tomo naru to, sekinin wa hijou ni omoi — when one becomes the president of a major company, the responsibility is extremely heavy)
• 年末ともなれば、街は買い物客でにぎわう (nenmatsu tomo nareba, machi wa kaimonokyaku de nigiwau — when it's the end of the year, the streets bustle with shoppers).

• Noun / plain form + とあって — states a special circumstance, then describes the natural reaction it causes; common in news-style writing.
• 連休とあって、高速道路はどこも渋滞している (renkyuu to atte, kousoku douro wa doko mo juutai shiteiru — since it's a long holiday, the highways are congested everywhere)

• Noun / verb dictionary form + に至って — something is finally realized, decided, or acted on only once an extreme point is reached, often implying "too late."
• 手術が必要な状態に至って、彼はやっと病院へ行った (shujutsu ga hitsuyou na joutai ni itatte, kare wa yatto byouin e itta — only when it reached the point of needing surgery did he finally go to the hospital)
• Related: ～に至っては singles out one extreme example within a larger group for comment; ～に至るまで means "all the way up to ~."

Practice reading these formal-circumstance sentences in the Quest Arena, then review the nuances on the Grammar Bridge.

• Verb dictionary form + きらいがある, or noun + の + きらいがある — describes an inherent, usually undesirable tendency or bad habit, not a one-time event.
• 彼は仕事を先延ばしにするきらいがある (kare wa shigoto o sakinobashi ni suru kirai ga aru — he has a tendency to procrastinate on work)

• ない-form + ではおかない, or ない-form (drop ない) + ずにはおかない — a natural force or strong emotion makes an effect inevitable; the double negative reads as a strong positive.
• この映画は観客を感動させないではおかない (kono eiga wa kankyaku o kandou sasenai de wa okanai — this movie is bound to move the audience)
• 彼の行動は皆を怒らせずにはおかない (kare no koudou wa mina o okorasezu niwa okanai — his behavior can't help but anger everyone).

• Noun (often a verb turned into a noun) + を余儀なくされる — circumstances beyond anyone's control force an unwanted outcome; a formal, passive-feeling construction common in news reports.
• 台風のため、試合は中止を余儀なくされた (taifuu no tame, shiai wa chuushi o yoginaku sareta — due to the typhoon, the match was forced to be canceled)

Spot forced outcomes and negative tendencies in the Quest Arena, then quiz yourself on all three with Flashcards.

• ～と言わざるを得ない (to iwazaru o enai — cannot help but say/conclude that): この結果は失敗だったと言わざるを得ない (kono kekka wa shippai datta to iwazaru o enai — one cannot help but conclude this result was a failure)
• ～ではなかろうか (de wa nakarou ka — isn't it perhaps...?): a softened, formal way to state an opinion as a rhetorical question. それは杞憂ではなかろうか (sore wa kiyuu de wa nakarou ka — isn't that perhaps needless worry?)
• ～に他ならない (ni hoka naranai — is nothing other than): 彼の成功は努力の賜物に他ならない (kare no seikou wa doryoku no tamamono ni hoka naranai — his success is nothing other than the fruit of effort)

• したがって (shitagatte — therefore, accordingly): links a conclusion drawn logically from what came before, more formal than だから.
• もっとも (mottomo — that said, although): follows a claim with a qualification or exception, softening what was just argued.
• ゆえに (yueni — therefore, hence): the most formal/logical of the three, common in academic and legal writing; often preceded by それ (それゆえに).

• 二重敬語 (double keigo): おっしゃられる is wrong — it stacks the already-honorific おっしゃる (say) with the honorific suffix ～られる. Say just おっしゃる, or 言われる.
• 伺う vs 参る (both humble "go/come," but not interchangeable): 伺う (ukagau) implies going to see, ask, or hear from someone of higher status — directed at the other party. 参る (mairu) is a plain humble "go/come" with no such direction, fine for general business use: 今参ります (ima mairimasu — I'm coming right now).

Practice spotting these editorial patterns in the Quest Arena, then review the full keigo ladder on the Grammar Bridge.