Why the て-Form Is a Game-Changer
If you had to pick one grammar form that unlocks more of the Japanese language than any other, it would be the て-form (て形, te-kei). It's used to connect actions, form the progressive tense, make requests, give and receive favours, express reason, and much more. The good news: once you learn how to conjugate it, all those uses follow the same base form.
How to Conjugate the て-Form
Group 1 Verbs (U-verbs / Godan)
The ending changes depending on the verb's final consonant:
| Verb ending | て-form change | Example |
|---|---|---|
| 〜う / 〜つ / 〜る | → って | 買う → 買って |
| 〜む / 〜ぶ / 〜ぬ | → んで | 飲む → 飲んで |
| 〜く | → いて | 書く → 書いて |
| 〜ぐ | → いで | 泳ぐ → 泳いで |
| 〜す | → して | 話す → 話して |
Exception: 行く (to go) → 行って (not 行いて)
Group 2 Verbs (RU-verbs / Ichidan)
Simply replace the final る with て:
- 食べる → 食べて
- 見る → 見て
- 起きる → 起きて
Irregular Verbs
- する → して
- くる → きて
Core Uses of the て-Form
1. Connecting Sequential Actions
Use て to link two or more actions in sequence, like "and then" in English.
シャワーを浴びて、朝ご飯を食べた。 — "I took a shower and then ate breakfast."
2. Progressive Tense (〜ている)
Attach いる to form ongoing actions or states:
今、音楽を聴いている。 — "I'm listening to music right now."
3. Making Requests (〜てください)
Add ください for polite requests:
ここに名前を書いてください。 — "Please write your name here."
4. Asking/Giving Permission (〜てもいい)
ここに座ってもいいですか？ — "May I sit here?"
5. Prohibition (〜てはいけない)
ここで写真を撮ってはいけません。 — "You must not take photos here."
6. Doing a Favour (〜てあげる / 〜てくれる / 〜てもらう)
The て-form combines with giving/receiving verbs to express doing something for someone:
- 〜てあげる — I do something for someone (below/equal)
- 〜てくれる — someone does something for me
- 〜てもらう — I receive the action of someone doing something for me
7. Doing Something in Advance (〜ておく)
旅行の前に予約しておいた。 — "I made a reservation in advance of the trip."
A Learning Strategy
Rather than trying to memorise all uses at once, pick one pattern per week and drill it with real sentences. Start with the sequential connection and progressive forms — they appear in almost every conversation. Once those feel automatic, add requests and permission. The て-form will quickly become second nature.