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Learn the systematic ki- (question), ti- (demonstrative), and i- (indefinite) correlative series in Esperanto.

HSK 1 | number | the digit nine; associated with longevity and imperial power

HSK 5 | verb/noun | to uplift and motivate someone through an energising or moving influence

Complete N3 kanji reference: 184 new kanji beyond N4, organized by meaning category. Includes stroke counts, on-yomi, kun-yomi, example words, and tricky reading notes.

HSK 1 | adjective | few, a little, not many

HSK 5 | adjective | describing something felt with urgency or strong desire

Learn how to express how long actions last and how often they occur, using time-measure complements and frequency adverbs essential for natural Chinese.

HSK 1 | noun | computer

HSK 3 | noun / verb | summary, conclusion; to summarize, to wrap up

HSK 3 | noun | an official public holiday or a day free from work

Complete Sindarin number system: cardinal numbers 1–1000, ordinals 1st–10th, counting, multiples, arithmetic expressions, and attested number words from Tolkien.

HSK 5 | verb/noun | financial loss; to operate at a loss; deficit

半 (half): 5 strokes, JLPT N5. On: ハン. Kun: なか-ば.

HSK 2 | noun | hotel; guest house; lodging establishment

We have three strings. For every length $l$ from $1$ up to the length of the shortest string, we must count how many triples of positions $$(i1,i2,i3)$$ produce three equal substrings of length $l$, one taken from each string.

雨 (u/ame): rain. JLPT N5 kanji.

HSK 4 | noun | money received from work, business, or investment

HSK 6 | verb/noun | to put forward an initiative; a formal proposal or initiative

Cirth — the angular runic script native to Sindarin, adopted by Dwarves as Angerthas Moria and Erebor — with letter tables and famous inscriptions.

HSK 4 | verb | to raise something to a higher level or quality

HSK 4 | adjective / noun | polite, showing good manners

〜ておく: JLPT N4 grammar pattern. Usage, structure, examples, and comparison with similar patterns.

大 (big, large): 3 strokes, JLPT N5. On: ダイ、タイ. Kun: おお、おお-きい.

HSK 6 | adv | used to concede a point before introducing a qualification or counterargument

HSK 5 | verb/noun | a real-time audio or video transmission to an audience

HSK 3 | noun | menu, the list of dishes available at a restaurant

HSK 1 | verb | to help, to assist

HSK 4 | verb / noun | to imagine; imagination

HSK 5 | verb / noun | to anticipate something with hope; hopeful expectation

HSK 5 | noun / adjective | an established norm or benchmark; conforming to the norm

N1 grammar: legal prescription formula 〜ものとする ('it is hereby stipulated that') and hypothetical assumption 〜ものとして ('assuming for this purpose that'). Legal, academic, formal contexts.

HSK 5 | noun | structural outline or framework that organizes a system

HSK 5 | noun | a legal or moral entitlement that a person is owed

The conventions of Chinese historical writing — 历史叙述 style, evaluative vocabulary, and the language of historical significance and controversy

JLPT N4 kanji 行 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

Master the Japanese counting system, learn to tell time, and express dates accurately to navigate daily life in Japan.

〜と思う: JLPT N4 grammar pattern. Usage, structure, examples, and comparison with similar patterns.

HSK 3 | verb | to allow, permit, or give permission for something

HSK 3 | adjective | feeling emotional pain or sadness

Master all six Esperanto participles — active and passive, present, past, and future — and their use as adjectives, adverbs, and in compound tenses.

HSK 4 | adjective | humble; modest; unassuming

HSK 5 | noun | an ordered set of steps or a computer program

人 (jin/nin/hito): person. JLPT N5 kanji.

HSK 3 | adj/adv | expressing regret or disappointment about something

HSK 4 | verb | to offer an example to illustrate a point

HSK 4 | adjective | existing or occurring widely across a group or area

Discuss economic and business topics using 在...方面, 就...而言, and formal business vocabulary at B1 level.

JLPT N4 kanji 夏 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

HSK 3 | conjunction | no matter what/how/who — used in 不管...都/也 pattern

N1 grammar pattern 〜をよそに: expressing that someone proceeds obliviously or indifferently to something (worries, expectations, circumstances) that should be relevant to them.

HSK 3 | noun | mouth, lips — used literally and in idiomatic expressions

HSK 4 | noun | the power or capacity to have an effect on others

Detailed Mandarin Chinese learning roadmap from complete beginner to C2: four phases, milestones, plateau strategies, and immersion techniques.

五 (five): 4 strokes, JLPT N5. On: ゴ. Kun: いつ、いつ-つ.

HSK 1 | number | ten thousand; the base large-number unit in Chinese counting

Complete Sindarin verb system: primary and A-stem verb classes, aorist/present/past/future tenses, person suffixes, and worked conjugation tables.

HSK 4 | n/adj | free time activities; relaxed and casual

HSK 5 | verb/noun | to long for intensely; a strong desire or yearning

HSK 5 | noun/adjective | a prolonged period of abnormally low rainfall; dry and parched

HSK 3 | adverb / expression | expresses compulsion arising from circumstances, not personal will

Master the N1 listening section: natural native speed (400+ chars/min), implied meaning, speaker stance inference, pitch accent minimal pairs, note-taking for long monologues, and analysis of five authentic-difficulty listening scripts.

Sindarin time vocabulary: days, months, seasons, the Elvish calendar (Reckoning of Rivendell), time expressions, and attested Elvish date references.

HSK 4 | noun | facts, data, or news communicated or received

10 structured lessons building JLPT N5 from zero: hiragana/katakana mastery, self-introduction, numbers, places, daily activities, shopping, adjectives, past tense, desires, and plans.

HSK 3 | verb + directional complement | to carry something into an enclosed space, toward the speaker

〜はずだ: JLPT N4 grammar pattern. Usage, structure, examples, and comparison with similar patterns.

HSK 3 | verb | to take part in, attend, or join an event or group

HSK 1 | noun | noodles

Japanese body parts, health, illness, injury, and medical vocabulary for everyday use and JLPT N5–N3.

HSK 5 | noun | earthquake, seismic event

HSK 1 | adjective | big, large, great

休 (kyuu/yasu-mu): rest. JLPT N5 kanji.

HSK 1 | pronoun/determiner | far demonstrative, referring to things at a distance

Learn household vocabulary and how to describe where things are using prepositions of place and the productive -ej- suffix.

Learn 〜をはじめとして and 〜をはじめとする to introduce a representative example from a larger group in formal Japanese.

HSK 3 | noun/verb | a shift or transformation in state or condition

Navigating the formal connective chains and specialized vocabulary of Chinese political and social commentary at C1 level

HSK 3 | adverb / conjunction | in addition, besides, furthermore; another, other

HSK 3 | verb / noun | presenting someone or something to others

Sindarin collective suffixes: -ath (total collective), -rim (people/kindred), -hoth (hostile host), -gwaith (company) — with all attested examples from Tolkien.

新 (shin/atara-shii): new. JLPT N5 kanji.

家 (house, family): 10 strokes, JLPT N5. On: カ、ケ. Kun: いえ、や.

HSK 5 | noun/adjective | the principles governing right and wrong conduct

Handle a complete restaurant interaction in Esperanto: ordering food, expressing preferences, noting dietary restrictions, and paying the bill.

HSK 2 | adjective/adverb | early, in the morning; also used as a morning greeting

Master the -is past tense and -os future tense in Esperanto, and learn essential time adverbs.

高 (kou/taka-i): tall. JLPT N5 kanji.

JLPT N4 kanji 館 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

言 (gen/gon/i-u): say. JLPT N5 kanji.

Learn to talk about dates, days of the week, and clock times, and understand why time comes before the verb in Chinese.

HSK 4 | noun | an organizational unit within a larger body

HSK 4 | adverb | expressing something that has always been true, or (negated) never

HSK 5 | noun | the level of openness, clarity, or accountability in a system or process

HSK 3 | noun | a numerical figure or digit

HSK 5 | verb | to convey; to relay; to pass on (information, instructions, or feelings)

HSK 5 | noun | administrative regulations and legal rules issued by authorities

半 (han/naka-ba): half. JLPT N5 kanji.

HSK 5 | noun/verb | a strategic game or contest involving competing interests and decisions

HSK 3 | noun | task, mission, assignment — something assigned or required to be done

We are given the coordinates of two distinct trees on a Cartesian plane, and we know that the garden forms a perfect square aligned with the axes. Each vertex of the square has a tree, so there are exactly four trees.