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tamnd's digital brain — notes, problems, research
42128 notes
HSK 3 | verb | to finish, accomplish, or fulfill a task or goal
N1 grammar patterns 〜あっての and 〜あってこそ: expressing that X is an indispensable prerequisite for Y. 〜あってこそ adds emphatic force.
HSK 5 | n | literary prose; an essay or lyrical prose piece
右 (u/yuu/migi): right. JLPT N5 kanji.
店 (store, shop): 8 strokes, JLPT N5. On: テン. Kun: みせ.
HSK 6 | verb | to examine closely in order to distinguish subtle differences
HSK 2 | modal verb | expressing permission or general possibility; contrast with 能 for ability
JLPT N4 kanji 書 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.
HSK 4 | verb / noun | to make progress; to improve; progress
Learn how to use 〜さえ〜ば (sae ~ ba) to express the minimum sufficient condition — 'if only ~, then everything is fine.' Includes structure, nuance, examples, and comparisons.
JLPT N4 kanji 館 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.
HSK 5 | verb/noun | to discuss and reach agreement through mutual consultation
HSK 4 | noun/adj | an established measure or criterion used for comparison or judgment
目 (eye): 5 strokes, JLPT N5. On: モク、ボク. Kun: め.
Learn 〜だけあって and 〜だけに to express outcomes that match or are expected given a particular quality or background.
HSK 2 | verb/adjective | to get angry, to be angry
Master the essentials of Japanese introductions, polite greetings, and basic sentence structure to start your first conversations with confidence.
HSK 3 | conjunction | no matter what/how/who — used in 不管...都/也 pattern
HSK 5 | noun | an organized collection of structured data stored and accessed electronically
HSK 4 | adjective | the most important or central element
Learn 〜をもとに and 〜をもとにして to express using something as raw material, inspiration, or source for creating or analyzing something new.
HSK 4 | conjunction | expressing unconditional situations
Learn to describe where things are using 在 and position words like 上面, 里面, and 前面.
HSK 1 | noun | cooked rice, steamed rice
HSK 3 | verb | to change, become, or transform into a different state
A dinner is represented as a sequence of flowers. A red flower contributes length 1, while white flowers are special: they may only appear in contiguous groups of exactly k flowers.
Learn to talk about your hobbies, ask yes/no questions, and use the -ad- suffix for ongoing activities.
HSK 4 | verb | to nurture and develop a skill, person, or quality
Express past events in Japanese using verb, adjective, and noun past forms, and use timeline vocabulary to sequence events in time.
HSK 4 | adjective / noun | polite, showing good manners
HSK 5 | noun | a person's or group's point of view or stance on an issue
HSK 4 | adverb | indicating something happened in the past but no longer continues
HSK 3 | adverb / noun | usually, ordinarily — during normal or ordinary times
千 (thousand): 3 strokes, JLPT N5. On: セン. Kun: ち.
HSK 4 | noun | a person who shares in a business venture or partnership
Master Esperanto's six-form participle system, distinguishing ongoing from completed states, and use participial nouns, adverbs, and compound tenses fluently.
HSK 1 | adjective | few, a little, not many
HSK 3 | pronoun | referring to the subject themselves
HSK 3 | noun | a section or component of a larger whole
HSK 3 | noun | a room or building used for work
HSK 5 | conjunction | a logical connector indicating a further step or consequence
HSK 5 | verb | to confirm; to acknowledge as correct
HSK 3 | adjective | correct, right, accurate — conforming to fact or standard
HSK 5 | verb/noun | to feel grateful; deep gratitude and appreciation
N1 grammar pattern 〜に至って(は): expressing 'now that it has come to ~, upon reaching this extreme point, at this point finally.'
Complete N3 grammar reference: ~200 patterns including conjunctions, conditions, degree expressions, formal structures, and nuanced patterns that distinguish N3 from N4. Each pattern includes structure, meaning, and 3+ example sentences.
HSK 4 | verb | to give special weight or importance to a point
電 (den/): electricity. JLPT N5 kanji.
HSK 5 | verb / noun | to develop; to open up resources or products
HSK 6 | verb | to tell apart, to discern differences between things
HSK 5 | verb/noun | to manage, administer, or oversee; management
Learn to link ideas, sentences, and paragraphs using coordinating and subordinating conjunctions and discourse markers for coherent, flowing Esperanto.
HSK 1 | noun | restaurant, eatery
Japanese work and business vocabulary: professions, office settings, keigo expressions, job hunting terms, and workplace culture.
HSK 4 | verb/noun | to break down a subject into its components in order to understand it
HSK 5 | verb | to promote and spread something admirable, especially cultural or moral values
Master the art of expressing desires, making suggestions, and articulating your future intentions in Japanese.
HSK 3 | noun | a fundamental rule or standard guiding behavior
月 (moon, month): 4 strokes, JLPT N5. On: ゲツ、ガツ. Kun: つき.
Master the vocabulary and grammar of Chinese legal and political discourse, enabling engagement with official documents, legal texts, and political commentary.
Master the structure and language conventions of Chinese academic essays, including argumentative thesis writing, paragraph development, and formal transitions.
HSK 4 | verb | to willingly take or agree to something offered
HSK 3 | noun | the proper or logical sequence in which things are arranged
HSK 4 | verb / noun | establishing or maintaining a link between people or things
晩 (ban/): evening. JLPT N5 kanji.
万 (ten thousand): 3 strokes, JLPT N5. On: マン、バン. Kun: よろず.
HSK 3 | verb | to agree, to consent, to approve
HSK 1 | adjective | difficult, hard. Antonym: 容易 (róngyi)
HSK 1 | adjective | easy, simple. Antonym: 难 (nán)
HSK 5 | verb/adjective | to inspire; to invigorate; filled with excitement and spirit
HSK 5 | noun | media; mass media; communications industry
HSK 3 | noun | attitude, manner, approach — how someone behaves or feels toward something
HSK 1 | adjective, adverb | fast, quick, quickly, soon
HSK 2 | adjective/verb | to be anxious, worried, or in a rush
HSK 4 | noun | the background or context of a situation
Mastering formal written and spoken Esperanto for business correspondence, academic writing, conference presentations, and professional contexts.
Learn to ask for and give directions, name places in a city, and talk about transport in Esperanto.
大 (dai/tai/oo-kii): big. JLPT N5 kanji.
HSK 3 | preposition | marks passive voice, indicating the subject is acted upon
HSK 1 | conjunction | introduces a reason or cause, paired with 所以
HSK 5 | verb / noun | to caution or alert; a cautionary sign or message
HSK 5 | adjective | existing below the surface; not yet apparent; potential
HSK 4 | verb/noun | to publicize, to promote; publicity, propaganda
A review lesson integrating all novice grammar in context: sentence-by-sentence analysis of two Latin passages, a curriculum summary, and independent reading practice.
We are given a collection of exams, each with two relevant days. The official schedule assigns exam i a day ai, but the student has a special agreement allowing him to take it earlier on day bi, where bi < ai.
Learn to talk about getting around using 怎么去 and 坐 + vehicle, and navigate common travel situations.
HSK 4 | verb | to refer to something briefly in speech or writing
HSK 1 | verb | to listen to or hear something
HSK 1 | noun | Chinese language, written Chinese
HSK 5 | conjunction | thus; thereby; consequently; so as to
Talk about what happened using the completion marker 了, negate past actions with 没有, and use 刚才 for recent events.
HSK 1 | pronoun/determiner | interrogative asking for selection among options
Learn how to use 〜に反して (ni hanshite) to express 'contrary to' or 'against' expectations, rules, or wishes. Includes structure, nuance, examples, and comparisons.
HSK 6 | n | the cognitive faculty of thinking; a mode or pattern of thought
HSK 2 | particle | expressive sentence-final particle with four tonal variants
HSK 4 | verb | to clearly express or demonstrate something
HSK 3 | noun | quality, standard — how good or poor something is
HSK 4 | adjective | concise, brief, and free of unnecessary content
HSK 4 | verb | to be in (a state, position, or situation)
HSK 4 | verb/noun | to train, to provide training; training