Database

Script, root system, dialects versus MSA, and reading skills for Arabic language learning

Pronunciation, grammar, formal and informal registers, and cultural context for French language mastery

Cases, word order, compound words, and formal register for German language proficiency

Devanagari script, postpositions, verb forms, and formal and informal registers for Hindi learning

Pronunciation, gestures, regional dialects, and grammar for Italian language proficiency

Hiragana, katakana, kanji, keigo, and particle usage for Japanese language learning

Hangul, honorifics, sentence structure, and particle usage for Korean language learning

Tones, pinyin, characters, measure words, and HSK progression for Mandarin Chinese mastery

Brazilian versus European Portuguese, pronunciation, false cognates, and regional variation

Cyrillic script, case system, verbal aspect, and pronunciation for Russian language learning

ASL fundamentals, facial grammar, fingerspelling, and Deaf culture for sign language learning

Grammar, conversation, conjugation, and regional variants for Spanish language learning and teaching