# Japanese conjugation drill

> Practice godan, ichidan, する, 来る, and adjective forms with typed recall. Charts stay readable if JavaScript is off.

Canonical: https://studyjapanese101.com/tools/conjugation-drill
Last updated: 2026-09-01

Type polite, negative, past, te-form, and later verb voices for a curated in-repo list. Misses show the rule.

Published: 2026-09-01

8 min read

## How to use this tool

1. Choose word classes you already met in a course. Leave unknown classes unchecked.
2. Start with polite, negative, past, and te-form. Add potential, passive, causative, and volitional later.
3. Type the form in Japanese. On a miss, read the rule, then continue.
4. When a class feels automatic, stop drilling it and put example sentences into your grammar path.

This page is typed recall over a curated list of common verbs and adjectives. The list lives in this repository. It is not a licensed deck.

Use it after a course has shown the class. A chart is not a substitute for sentences.

## After a round

A drill is not a grammar path. Return to the [grammar hub](https://studyjapanese101.com/resources/grammar) for explanations, the [grammar shortlist](https://studyjapanese101.com/best/japanese-grammar-resources) for a tighter pick, and [Bunpro](https://studyjapanese101.com/resources/bunpro) if the next job is retrieving the pattern inside a sentence.

## Godan chart

Godan verbs change the last う-row kana.

| Form | Pattern | 書く |
| --- | --- | --- |
| Polite | い-row + ます | 書きます |
| Negative | あ-row + ない (う → わ) | 書かない |
| Te-form | く→いて, ぐ→いで, す→して, ぬ/ぶ/む→んで, う/つ/る→って | 書いて |
| Past | Same as te-form, て→た / で→だ | 書いた |
| Potential | え-row + る | 書ける |
| Passive | あ-row + れる | 書かれる |
| Causative | あ-row + せる | 書かせる |
| Volitional | お-row + う | 書こう |

行く is the usual exception: 行って, 行った.

## Ichidan chart

Ichidan verbs drop る.

| Form | Pattern | 食べる |
| --- | --- | --- |
| Polite | stem + ます | 食べます |
| Negative | stem + ない | 食べない |
| Past | stem + た | 食べた |
| Te-form | stem + て | 食べて |
| Potential / passive | stem + られる | 食べられる |
| Causative | stem + させる | 食べさせる |
| Volitional | stem + よう | 食べよう |

## Irregular verbs

| Lemma | Polite | Te-form | Negative |
| --- | --- | --- | --- |
| する | します | して | しない |
| 来る | 来ます | 来て | 来ない |
| 勉強する | 勉強します | 勉強して | 勉強しない |

## Adjective chart

| Class | Polite | Negative | Past | Te-form |
| --- | --- | --- | --- | --- |
| い-adjective | 高いです | 高くない | 高かった | 高くて |
| いい | いいです | よくない | よかった | よくて |
| な-adjective | 静かです | 静かじゃない | 静かだった | 静かで |

The drill also accepts 静かではない for the な-adjective negative.

## Frequently asked questions

### Is this a complete conjugation course?

No. It is recall practice for forms you already saw. Use a grammar explanation source first, then drill.

### Why does 行く become 行って instead of 行いて?

行く is a godan exception. Textbook て-form is 行って, and the past is 行った.

### Why does いい become よくない?

いい is the common dictionary form of よい. Negative, past, and te-form use the よ stem.

## Related

- [Best Japanese Grammar Resources: What to Use and When](https://studyjapanese101.com/best/japanese-grammar-resources) - Start with Tae Kim for a free explanation path, use Bunpro when retrieval is the bottleneck, keep Imabi or A Dictionary of Japanese Grammar for deeper lookup, and use Maggie Sensei for extra examples.
- [Bunpro](https://studyjapanese101.com/resources/bunpro) - Typed grammar and vocabulary reviews inside changing sentence prompts.
- [Japanese study stack builder](https://studyjapanese101.com/tools/study-stack-builder) - Pick the smallest useful Japanese stack from the site's editorial catalog. The written tree still works with JavaScript off.
- [Japanese Level Self-Check: Beginner Foundations](https://studyjapanese101.com/tools/japanese-level-self-check) - This short self-check covers kana, vocabulary and grammar. It helps you choose what to practise next; it does not predict a JLPT result or measure your full Japanese level.
- [Japanese grammar resources](https://studyjapanese101.com/resources/grammar) - Grammar study fails when explanations never become retrieval. Pick the job first.
- [5 Best Anki Alternatives for Japanese: Inku Is Our Pick](https://studyjapanese101.com/best/anki-alternatives-for-japanese) - We recommend Inku first for most Japanese learners who want prepared daily review on iPhone. Renshuu fits a broader Japanese study system, JPDB fits media vocabulary, WaniKani fits a fixed kanji path, and Bunpro fits grammar retrieval. Protect your Anki collection before testing a replacement.