If you can only learn one Japanese conjugation in your first month, learn the て-form. Nothing else returns more grammar per hour studied. It chains verbs, makes polite requests, builds the progressive, asks permission, gives gifts and even softens commands. Most learners limp through N5 with a fuzzy understanding of it. The ones who memorise it cleanly read N4 textbooks the next month with no drama.
1. Why The て-Form Is N5’s Highest-Leverage Grammar
Most N5 grammar points stand alone. The te-form does not — it is the connector that other grammar plugs into. Spend 30 minutes on the te-form rule and you compress weeks of future grammar headaches into one afternoon.
2. The 3-Group Rule
| Group | Ending | て-form | Example |
|---|---|---|---|
| 1 (う-verbs) | う / つ / る | って | 買う → 買って |
| 1 | む / ぶ / ぬ | んで | 飲む → 飲んで |
| 1 | く | いて | 書く → 書いて |
| 1 | ぐ | いで | 泳ぐ → 泳いで |
| 1 | す | して | 話す → 話して |
| 2 (る-verbs) | 〜る | drop る + て | 食べる → 食べて |
| 3 (irregular) | — | — | する → して, 来る → きて |
3. The 行く Exception
行く ends in く but does not follow the いて pattern. It becomes 行って. This single exception is the most frequent verb in N5 daily speech. Apps that skip it leave you sounding consistently wrong.
4. The Eight Patterns It Unlocks
- て-chain: 起きて、シャワーを浴びて、出かけました。
- てください: ちょっと待ってください。
- ている (progressive / state): 食べている / 結婚している。
- てもいいです (permission): 写真を撮ってもいいですか。
- てはいけない (prohibition): 入ってはいけません。
- てあげる / てくれる (giving / receiving favours): 教えてくれてありがとう。
- てみる (try): 食べてみます。
- てしまう (regret / completion): 忘れてしまった。
5. The Drill That Makes It Stick In 7 Days
- Day 1–2: Memorise the う-verb endings table aloud, ten times each.
- Day 3: Drill the る-verb conversion. Trivial but easy to confuse with う-verbs ending in る.
- Day 4: Drill する / 来る and the 行く exception until automatic.
- Day 5–7: Use Kanjijo’s SRS te-form deck. Each card is a verb in dictionary form; you respond with the te-form aloud.
6. The N4 Bonus
Every patient hour you spend on the te-form at N5 returns three saved hours at N4 and N3. The te-form is not a chapter — it is a compounding investment.
Drill The て-Form With Kanjijo
Free on iOS. Full N5 → N1 grammar with colour-coded conjugation tables, exclusive mnemonics for every kanji and JLPT vocab word, three widget formats, OCR scanning and SRS that keeps the te-form in your bones.
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Frequently Asked Questions
It is reused in at least 8 essential grammar patterns. Master it once, dozens of grammar points unlock.
Group 1 splits by ending; Group 2 drops る + て; Group 3 (する/来る) is irregular.
行く becomes 行って, not 行いて. Most common verb in N5.
Colour-coded groups, explicit 行く drill, SRS reinforcement and widget exposure.