If you learn one verb form thoroughly, learn this one.
The て-form is the connector of Japanese. An unusual amount of grammar attaches to it, so getting it automatic unlocks requests, permission, prohibition, ongoing actions and sequences all at once.
What attaches to it
| Pattern | Meaning | Example |
|---|---|---|
| 〜てください | Please do | まってください |
| 〜てもいいですか | May I? | はいってもいいですか |
| 〜てはいけません | You must not | ここで たべてはいけません |
| 〜ています | Is doing / ongoing state | あめが ふっています |
| 〜てから | After doing | たべてから いきます |
| 〜てみます | Try doing | きてみます |
| 〜ています + すみません | Apologies and explanations | おくれて すみません |
| 〜て、〜 | And then (linking) | おきて、たべて、いきます |
That is a large share of everyday usable Japanese from a single form.
Forming it
From the ます-stem, by group.
Group 1 (う-verbs) — the endings change according to the last sound:
| ます-form ends in | て-form | Example |
|---|---|---|
| い, ち, り | って | かいます → かって |
| み, び, に | んで | よみます → よんで |
| き | いて | かきます → かいて |
| ぎ | いで | およぎます → およいで |
| し | して | はなします → はなして |
Group 2 (る-verbs) — drop ます, add て: たべます → たべて, みます → みて.
Irregular — します → して, きます → きて. And the one exception within Group 1: いきます → いって, not いいて.
How to actually learn it
Not from the table. The table above is a reference, not a method. Nobody conjugates at conversational speed by consulting rules.
Out loud, in sentences, until it is reflexive. Take twenty verbs you already know and produce their て-forms aloud, repeatedly, over several days. The goal is that かいます → かって arrives without thought.
In useful whole sentences. まってください. ちょっと まって. たべてもいいですか. You are learning phrases you can use, not paradigms.
The song, if it helps you. There is a well-known mnemonic song for the Group 1 endings. It is slightly ridiculous and it works for a lot of people.
Why it matters for exams
JFT-Basic leans on it heavily. Requests (〜てください), permission (〜てもいいですか), prohibition (〜ないでください as its negative counterpart) and ongoing states (〜ています) appear across the conversation, listening and reading sections. See the grammar you need.
JLPT N4 is substantially a test of whether verb conjugation has become automatic rather than calculated. If you are still working it out, that is the work. See the N4 guide.
The related forms
Once て is automatic, the others follow cheaply — they use the same group logic:
- た-form (past, plain): same endings with た/だ instead of て/で
- ない-form (negative, plain): the basis of 〜ないでください and 〜なくてもいいです
Learn て first, properly. The others cost far less afterwards.
See also Japanese verb groups, which is the classification all of this depends on.