Learn how to use V (short) + 間に to say “while / during …” in Japanese. Clear rules (use ている), forms with verbs/adjectives/nouns, natural examples, “間に vs. ながら / 間,” common mistakes, and quick practice for JLPT N4 learners.

Learn how to use V-てある to say “has been done (in preparation)” in Japanese. See the pattern with transitive verbs, the difference from ておく, why intransitives don’t work, the set phrase ～と書いてあります, plus examples, drills, and common mistakes.

Master the Japanese passive (れる・られる). Learn how to build (Doee) は (Doer) に V-れる/られる, conjugation for ru/u/irregular verbs, and when to use it: adversity passive, neutral reports, and positive passives. With clear examples, practice, and common mistakes.

Learn how to use plain (short) form + はずです to express “I’m sure that…” or “It should be…” in Japanese. Clear formation for verbs, adjectives, and nouns (including negatives & past), natural examples, practice, and common mistakes—perfect for JLPT N4 learners.

Learn how to say “I’m glad that …” with V-て + よかったです in Japanese. Clear meaning, how to form positives and negatives (〜なくてよかったです), natural examples, practice, and common mistakes for JLPT N4 beginners.

Learn V-ば + よかったです to express past regret in Japanese: “I should have…” / “I shouldn’t have…”. Clear formation, examples, common mistakes, and quick practice.

Learn the Japanese grammar 〜てしまう. Say you’ve completely finished something or accidentally ended up doing it, with examples, structure, and practice sentences.