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The Inku Blog
Opinionated writing on learning Japanese, flashcard apps, and the quiet pleasures of picking up a language slowly.
Shorter, more opinionated than the pillar guides. Field notes, method essays, and the occasional rant. Follow new posts in your reader with the Inku RSS feed.
Answering Negative Questions in Japanese: Keep the Context
3 min readKeep the question and its purpose visible when answering a negative question. A reply that confirms a negative report differs from accepting an invitation, so practise the full intended fact or action rather than an isolated yes/no rule.
Japanese Family Words: Describe Someone or Address Them?
3 min readA family word depends on the scene as well as whose relative it names. Compare formal reference to your father, familiar direct address and a respectful reference to someone else's father, without treating one word pair as a rule for every household.
Find the Dictionary Word Behind a Japanese Verb Form
3 min readA changed verb needs a checked dictionary candidate, not just a removed ending. Follow the reading verb through two encountered forms, then confirm its group, meaning and fit in the original sentence.
Japanese Speech Contractions: Recognize the Full Form
3 min readA contraction shortens a longer form. Learn to connect two complete casual sentence shapes with their full versions, while keeping recognition separate from the decision to use casual speech yourself.
Japanese Homophones: Choose the Meaning From the Scene
3 min readA sound can lead to more than one dictionary entry. Work through hot tea and hot weather, use the scene to choose the intended sense, and keep an ambiguity unresolved when the available information is not enough.
Ne vs Yo in Japanese: Keep the Fact, Change the Conversation
3 min readThe fact in a sentence can stay the same while its ending changes the speaker's purpose. Use two checked examples to distinguish confirmation from pointing something out, without treating either ending as a fixed English tag.
Why Japanese Leaves Out I and You: Follow the Context
3 min readAn unspoken participant is not automatically I. Follow three checked examples, keep a third person through a short reply, and restore a name or ask for context when the intended person is unclear.
Today, Tomorrow and Yesterday in Japanese: Find the Reference Day
3 min readKnowing the day words is only the first step. Follow one plan across a day change, distinguish a new statement from an old message, and attach a calendar date before you reuse a relative time word.
Japanese Ko-So-A-Do: Objects, Places and Words Before a Noun
3 min readChoose what kind of expression you need before choosing its position: an object, a place, or a word that goes before a noun. A clear physical scene makes the basic ko-so-a-do map easier to apply.
Aru vs Iru: Choose the Japanese Existence Verb for the Scene
3 min readFor basic existence sentences, objects and trees use arimasu, while people and animals use imasu. Choose what exists before adding its location, and treat this beginner pattern as a guide rather than an absolute biology rule.
Japanese I-Adjectives and Na-Adjectives: Check How They Join a Noun
3 min readThe adjective class tells you how a word behaves, not just what its English translation means. Compare two noun phrases, avoid guessing from the last letter, and keep one checked phrase beside each new adjective.
What Is Rendaku? Check the Sound Change in a Japanese Compound
3 min readA compound can sound different from its separate parts. Follow the change from medicine to eye medicine, locate the consonant that changes, and keep the checked whole-word reading instead of applying voicing everywhere.
How to Pronounce the Japanese U Vowel
4 min readFor a starting model of voiced Japanese u, relax the lips without pushing them forward or stretching them sideways. Practise it in a checked word. Vowel quality, vowel length and whether the vowel is voiced are separate questions.
How to Pronounce Japanese F in Fu
4 min readBasic Japanese fu uses the upper and lower lips close together. It does not use the upper-teeth/lower-lip contact of a typical English f. Keep the following vowel and practise the whole sound in a checked word, rather than copying the roman letter alone.
How to Pronounce Japanese R
4 min readA useful starting model for Japanese r is a light, brief tongue-tip contact near the ridge behind the upper teeth. Use a checked Japanese model, then practise the sound inside a word. The letter r in romaji does not tell you to copy an English r.
How to Read Japanese Without Spaces
4 min readRead an unspaced Japanese sentence by combining word recognition, grammar and context. Script changes are useful clues, but they are not automatic word boundaries. Make a possible grouping, check the unfamiliar part, then read the complete sentence again.
How to Read 々 in Japanese Words
4 min readThe kanji repetition mark tells you that the previous character is repeated. Its pronunciation comes from the complete word, so copying the first sound mechanically can give the wrong reading. Look up the word with its reading and meaning.
Japanese Punctuation Marks: A Reading Guide
4 min readJapanese punctuation helps you find sentence endings, pauses and quoted text. Start with full stops, commas and corner quotation brackets. Read the marks as instructions for understanding the text, rather than as extra syllables in a word.
Small Ka and Ke: Reading Japanese Counting Signs
4 min readSmall ke-shaped and ka-shaped signs often appear in counting expressions, where they can stand for ka. In a place name, the reading belongs to that name. Identify the whole expression before applying a sound from the katakana chart.
Why Hiragana Looks Different in Different Fonts
4 min readA hiragana character can have several familiar printed and handwritten forms. A joined curve or a different stroke ending does not automatically make it a new kana. Practise recognizing variants while keeping one clear model for your own writing.
On'yomi vs Kun'yomi: The Two Kanji Readings and How to Learn Them
4 min readKanji have on'yomi, readings borrowed from Chinese, and kun'yomi, native Japanese words written with the kanji. See how the official kanji list marks them, the usual patterns and their exceptions, and a word-first way for beginners to learn readings.
Why Does です Sound Like “Dess”? Devoiced Vowels in Japanese
4 min readIn Japanese, i and u are often devoiced between voiceless consonants, or after a voiceless consonant at the end of a sentence, so です sounds like dess and すき like ski. Learn the two conditions, word pairs where it does and does not happen, and how to use the pattern for listening and speaking.
How to Pronounce ん: Why the Japanese N Changes Sound
4 min readJapanese ん is a nasal sound that fills one beat. It sounds like m before m, b and p, n before t, d and n, ng before k and g, close to a nasal vowel before vowels, y and w, and often further back than ng at the end of a word. Learn each case with examples and why romaji writes n'.
Why Is は Pronounced Wa? The Particles は, へ and を
4 min readThe particles は, へ and を are read wa, e and o. Modern kana spelling follows today's sound but keeps these three particles in their older spelling. Learn where the rule comes from, how to spot a particle, why charts label を as wo, and how romaji writes them.
Flashcard Reviews Piled Up After a Break? How to Catch Up
5 min readA review backlog after a break often includes many cards you can still recall. Pause new cards, cap the daily amount, let the most at-risk cards go first and grade honestly, then restart new cards when the daily count fits a normal session.
Look-Alike Kana: Four Checks for シ/ツ, ソ/ン, さ/ち and More
5 min readMost confusable kana separate on one of four checks: which way the long stroke moves, how many strokes there are, how the last stroke ends, or the surrounding word. Includes katakana that look like kanji, such as ロ and 口.
Katakana Extended Sounds: How to Read ファ, ティ, ウィ and ヴ
5 min readExtended katakana such as ファ, ティ, ウィ and ヴ write loanword sounds the basic chart lacks. Learn the one reading rule, the two official tables, why many words have two spellings, and where the long vowel mark ー fits.
Small ゃ, ゅ, ょ in Japanese: How to Read きゃ, しゅ and ちょ
5 min readSmall ゃ, ゅ and ょ turn an i-column kana into one combined syllable, called yōon. Learn the 11 common rows, why small versus full size changes the word, how the 2025 romaji rules spell them, and how they work in katakana.
How to Remember the Pronunciation of New Japanese Words
4 min readPronunciation sticks when you practice it: listen to a clear model, say the word aloud, count morae, and test yourself on the reading as well as the meaning.
Dakuten and Handakuten: What ゛ and ゜ Do to Japanese Kana
4 min readTwo small marks add 25 hiragana. Dakuten turns k, s, t and h rows into g, z, d and b; handakuten turns the h row into p. Learn the base row first, then the mark.
Small Tsu and Long Vowels in Japanese: How to Read っ, ッ and ー
4 min readCount beats, not letters. Small っ/ッ is one silent beat that doubles the next consonant; long vowels add one beat, written with an extra kana in hiragana and ー in katakana.
When to Press Again on a Flashcard (and When Got It Is Fair)
4 min readDecide what counts as a correct answer before you flip, then grade honestly: blanks, partial readings, guesses and hinted answers are Again. Slow but complete recall can pass.
What to Do With a Japanese Flashcard You Keep Forgetting
4 min readA repeatedly forgotten card is a signal to inspect the card, not a reason to press Again forever. Use this short repair sequence before you add more reviews.
What Should Go on a Japanese Vocabulary Flashcard?
5 min readA Japanese vocabulary card works best when it asks one clear question. Use a short answer, a natural example, and only the support needed for the recall job.
How Many New Japanese Flashcards Should You Learn Each Day?
4 min readFive new cards a day is a sensible starting point. Keep that pace only while you can finish due reviews and recall the answers honestly.
Shinobi Japanese: Start Reading Before You Feel Ready
4 min readShinobi Japanese combines graded illustrated stories with native audio, lookup, quizzes, and review. Use it when you need a manageable bridge from vocabulary cards to connected Japanese.
Moji: Keep Kanji in View, Then Test Your Recall
3 min readMoji puts Japanese kanji into phone widgets and pairs that exposure with readings, examples, guided writing, and spaced review. Consider it when keeping a character in view helps you return to focused practice.
Mugi: A Bridge from Textbooks to Real Japanese
3 min readMugi combines native Japanese videos matched to a learner level with word and sentence explanations and spaced review. Consider it when textbook study is progressing but real Japanese speech still feels hard to follow.
Kiku: Make Short Japanese Clips Worth Your Time
3 min readKiku uses short Japanese video clips with word lookup, contextual explanations, and vocabulary review. Consider it if an enjoyable clip makes it easier to begin listening, then give the session a clear stopping point.
Gravity: Keep the Context When You Learn Japanese
3 min readGravity connects native Japanese media with synced transcripts, word lookup, and review that keeps the original source context. Consider it when you want words from what you watch to return as study material.
Renshuu vs Anki for Japanese: which fits your study routine?
Compare Renshuu and Anki for Japanese by setup, prepared material, personal decks, daily workload, platforms, and cost.
7 min readRenshuuAnkiSRS
Romaji Is a Crutch (and That Is Fine for Two Weeks)
Romaji helps you start and then quietly holds you back. Here is the honest case for using it briefly and dropping it fast.
7 min readKanaBeginners
Learning Japanese From Anime: What Works and What Wrecks Your Accent
Anime is a real listening tool and a real trap. Here is what it is good for, what it teaches wrong, and how to use it without sounding strange.
9 min readCultureListening
Hiragana vs Katakana: When to Use Each
Two kana scripts, same sounds, different jobs. Here is when Japanese uses hiragana, when it uses katakana, and which to learn first.
8 min readHiraganaKatakanaKana
Is Japanese Hard to Learn? An Honest Answer for English Speakers
Japanese has a reputation for being impossible. Here is what is genuinely hard, what is easier than you expect, and how long it really takes.
9 min readLearningStrategy
Japanese Counters: Why You Cannot Just Count to Ten
Japanese uses different counters for flat things, long things, people, and animals. Here are the ones worth learning first and how to drill them.
8 min readGrammarVocabulary
Wa vs Ga: The Clearest Explanation of は and が
The difference between は and が in plain English, with a simple mental model and many real examples so it finally clicks.
9 min readGrammarParticles
The Japanese Te-Form, Explained Simply
The te-form is the one conjugation that unlocks requests, linked actions, and the progressive. Here is how to form it and when to use it.
9 min readGrammarVerbs
JLPT N4 Vocabulary: What to Learn After N5
What changes when you move from JLPT N5 to N4, how many words to expect, and how to study the next set without burning out.
9 min readJLPTN4Vocabulary
Japanese Colors: Every Color Word, With the Adjective Trap Explained
A clear guide to Japanese colors, with the i-adjective vs noun rule explained. Six colors can modify a noun directly; the rest, including midori and murasaki, need の.
8 min readVocabularyGrammarN5
100 Most Common Japanese Words for Beginners
The 100 most common Japanese words for beginners, grouped into greetings, family, food, time, travel, body, weather, numbers, verbs, and adjectives. Each shows kana, romaji, and English.
9 min readVocabularyN5Beginner
Anime Japanese vs Real Japanese: What's Safe to Actually Say
Which anime Japanese phrases are safe to say in real life and which are rude. Two clear tables, the polite default to use instead, and why pronouns are the trap.
9 min readAnimeSpeakingCulture
How to Say Sorry in Japanese: Sumimasen vs Gomennasai vs Moushiwake
How to say sorry in Japanese: sumimasen, gomennasai, and mōshiwake arimasen compared by register, plus shitsurei shimasu and the gomen kudasai false friend.
9 min readPhrasesPolitenessVocabulary
How to Say Thank You in Japanese (Casual to Very Formal)
How to say thank you in Japanese, from casual to very formal: arigatou, arigatou gozaimasu, the gozaimasu vs gozaimashita nuance, sumimasen as thanks, and when to use each.
9 min readPhrasesPolitenessBeginner
Anki for Japanese: Why We Recommend Inku
We recommend Inku over Anki for most Japanese learners: ready-made cards, bundled audio, and daily reviews. See the tradeoffs and practical Anki setup.
10 min readAnkiToolsSRS
How Many Words Do You Need for JLPT N5?
About 800 words is the commonly cited count for JLPT N5, but it is an estimate, not an official figure. Here is what the number means, why a high-frequency core matters more, and what else N5 tests.
8 min readJLPTN5Vocabulary
How Long Does It Take to Pass JLPT N5? A Realistic Estimate
A realistic estimate of how long it takes to pass JLPT N5: about 150 to 300 study hours, or three to six months at 30 minutes a day. Plus the real pass marks and the variables that change the timeline.
9 min readJLPTN5Study plan
How to Stay Consistent Learning Japanese Without Streaks
A calm, research-backed way to stay consistent with Japanese without streak pressure: set a tiny daily minimum, make returning shameless, and protect the habit, not the number.
8 min readStudy habitStrategyConsistency
What Is FSRS? The Spaced-Repetition Algorithm, in Plain English
FSRS (Free Spaced Repetition Scheduler) predicts the moment you are about to forget a card and schedules the review for then. A plain-English explanation, and how it compares to SM-2.
8 min readSRSFSRSMemory
Do Japanese Flashcards Actually Work? (The Honest Answer)
Yes — for kana and vocabulary, Japanese flashcards are one of the most efficient tools there is, when you use active recall and spaced repetition. Here is what they are good at, what they are not, and how to use them right.
9 min readFlashcardsSRSMemory
The Masu Form: Polite Japanese Verbs Made Simple
How to conjugate the polite masu form of Japanese verbs: the three verb groups, the u-verb sound shift, the two irregulars, and the four masu endings.
9 min readGrammarVerbsBeginners
Days of the Week and Months in Japanese
The seven days of the week and twelve months in Japanese, plus the irregular days of the month, with kanji, kana, and romaji and the patterns that make them easier.
8 min readVocabularyBeginnersNumbers
Japanese Greetings: The Phrases You Actually Need First
The Japanese greetings worth learning first, from ohayou gozaimasu to itadakimasu, with when to use each and the casual and polite forms.
10 min readPhrasesBeginnersVocabulary
The Difference Between a Streak Trap and a Study Habit
A simple way to tell whether your Japanese app is helping you learn or just helping you come back.
4 min readLaunchStudy habit
Why Inku Teaches Five Cards at a Time
Why small review sets make Japanese easier to start, easier to finish, and easier to remember.
4 min readLaunchFlashcards
I Built the Japanese App I Wanted After Quitting Noisy Language Apps
A short launch note about why Inku exists: Japanese that sticks, without a phone that yells at you.
4 min readLaunchFounder story
Kanji Learning Strategies That Actually Stick
Radicals, stories, writing practice, and the one strategy nobody recommends but everybody needs.
11 min readKanjiStrategy
Japanese Pitch Accent: Why Most Apps Skip It and Whether You Should Care
Pitch accent is Japanese's invisible grammar. Here is when to study it, when to ignore it, and how to hear it for the first time.
10 min readPronunciationAdvanced
The Best Way to Learn Hiragana in 3 Days
A schedule, a method, and a set of guardrails against the mistakes that cost most people a week.
9 min readHiraganaStrategy
How Long Does It Take to Learn Japanese? A Brutally Honest Timeline
Working adults, be warned. Here is a realistic month-by-month plan from zero to conversational Japanese.
13 min readTimelineStrategy
Why I Stopped Using Anki (and What I Built Instead)
Anki works. It is also a blank sheet of graph paper. After three years, here is why I stopped opening it.
10 min readAnkiFounder story
Moshi Moshi: Why Japanese Phones Aren't Answered Like Yours
The real story behind もしもし, where it came from, and the ghost-related reason it sticks around.
7 min readCulturePhrases
Wasei-eigo: 50 English Words the Japanese Changed Beyond Recognition
Why マンション (manshon) means apartment, not mansion. A tour through the English words Japan quietly rewrote.
12 min readCultureVocabulary
The Spaced Repetition Mistake That Wastes 90% of Learners' Time
Most people set up SRS wrong on day one. Here is the fix that took my retention from 60 percent to 94 percent.
8 min readSRSMemory
Duolingo for 100 Days: What I Learned, What I Wish I'd Done Differently
A journal, a scoreboard, and a reckoning. Ninety-eight green owls later, what actually stuck.
11 min readDuolingoReviewStrategy
Can You Actually Learn Japanese in 10 Minutes a Day?
A brutally honest answer to the question every language app dodges. With real numbers from six months of self-logging.
9 min readStrategyLearning
