The て-form is the swiss-army knife of Japanese conjugation. It doesn't mean anything by itself, but it's the base for making requests, describing ongoing actions, connecting sentences, asking permission, and dozens of later grammar points. Learn it well and a huge amount of Japanese opens up.
This builds on the three verb groups. If you're not sure how to tell them apart, read Japanese verb conjugation basics first.
Forming the て-form
Group 2 (ru-verbs): drop る, add て.
- 食べる → 食べて
- 見る → 見て
Group 3 (irregular):
- する → して
- 来る (くる) → 来て (きて)
Group 1 (u-verbs): the ending decides the change. This is the part to memorize:
| Dictionary ending | Changes to | Example |
|---|---|---|
| う, つ, る | って | 買う → 買って · 待つ → 待って · 取る → 取って |
| む, ぶ, ぬ | んで | 飲む → 飲んで · 遊ぶ → 遊んで · 死ぬ → 死んで |
| く | いて | 書く → 書いて |
| ぐ | いで | 泳ぐ → 泳いで |
| す | して | 話す → 話して |
The one exception to memorize: 行く (to go) → 行って, not 行いて. It behaves like the う/つ/る group.
A well-known mnemonic song ("Te-form song") sets these endings to music — worth a search if patterns stick better for you with a tune.
The main uses
1. Making requests — 〜てください
ちょっと待ってください。 — Please wait a moment.
2. Connecting actions ("and then") Chain events in order by ending each verb in て:
朝起きて、コーヒーを飲んで、出かけます。 I get up, drink coffee, and head out.
3. The progressive / ongoing state — 〜ている
今、本を読んでいます。 — I'm reading a book right now. Also for ongoing states: 結婚しています (I'm married).
4. Asking / giving permission — 〜てもいいです
ここに座ってもいいですか。 — May I sit here?
5. Prohibition — 〜てはいけません
ここで写真を撮ってはいけません。 — You must not take photos here.
6. "Try doing" — 〜てみる
食べてみます。 — I'll try eating it.
That's six high-frequency patterns from one conjugation — which is exactly why the て-form is worth drilling until it's automatic.
How to make it stick
Don't just memorize the table — produce the て-form out loud with real verbs until the sound changes feel natural. The endings (って, んで, いて) become muscle memory faster through use than through study. Meeting these forms constantly in real sentences is what cements them.
Cotobara teaches verbs in context with native audio and example sentences, so you hear and absorb て-forms in natural use while you build vocabulary — turning a conjugation rule into something you just know. Stock up on verbs with the 50 most common Japanese verbs.
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