Japanese Verbs: Types, Conjugation Rules, and Common Examples

Japanese verbs are the core building blocks of Japanese grammar—they show actions, states, and tense all in one word through conjugation. Understanding the three verb groups (ru-verbs, u-verbs, and irregular verbs) and their conjugation patterns is essential for every JLPT level and for speaking, reading, and writing naturally in Japanese.

What Are Japanese Verbs?

A Japanese verb is a word that expresses an action or state and changes its ending to show tense, politeness, negation, and more. Every Japanese sentence contains at least one verb—it's the anchor that holds the grammar together.

Unlike English, Japanese verbs don't conjugate for person or number. Instead, they follow predictable patterns based on their verb group. There are 3 main verb groups in Japanese:

• Group 1 (u-verbs / godan verbs): verbs whose dictionary form ends in u-row hiragana (e.g., 書く kaku, 話す hanasu)
• Group 2 (ru-verbs / ichidan verbs): verbs that end in -る preceded by an e- or i-sound (e.g., 食べる taberu, 見る miru)
• Irregular verbs: する suru ("to do") and 来る kuru ("to come")—just two verbs, but they appear constantly

Mastering these groups early will accelerate your understanding of Japanese sentence structure and make conjugation feel automatic.

Why Do Japanese Verbs Have Groups?

Japanese verbs are sorted into groups because each group follows its own conjugation rules. Knowing which group a verb belongs to tells you exactly how to form the te-form, ta-form, negative, potential, and every other conjugation. This classification system is used by every textbook, teacher, and JLPT preparation guide.

There are over 5,000 commonly used verbs in Japanese, but roughly 80% are u-verbs, about 18% are ru-verbs, and only 2 verbs are irregular. That means once you learn the u-verb conjugation pattern, you unlock the majority of Japanese verbs in one go.

How to Tell Which Group a Verb Belongs To

Start by looking at the dictionary form (plain present affirmative). If the verb ends in anything other than -る, it's automatically an u-verb. If it ends in -る, check the vowel sound right before the る:

• If the sound is "e" or "i" (e.g., たべる, みる), it's usually a ru-verb.
• If the sound is "a," "u," or "o" (e.g., 走る hashiru), it's an u-verb.

Unfortunately, there are exceptions—some verbs that end in -eru or -iru are actually u-verbs (e.g., 帰る kaeru, 切る kiru). These must be memorized, but they're relatively few. You'll encounter most of them in JLPT N5 grammar and JLPT N4 material.

How Are Japanese Verbs Conjugated?

Conjugation means changing the verb's ending to express tense, politeness, mood, or function. Japanese verbs have a stem and an ending. The stem usually stays constant, and the ending changes according to the verb group and the conjugation type.

For a complete walkthrough of the most important conjugations, check out the Japanese verb conjugation guide, which covers te-form, ta-form, and more step-by-step.

U-Verb Conjugation (Group 1)

U-verbs change the final u-row kana to a different row depending on the conjugation. For example, 書く (kaku, "to write"):

• Masu-form: 書きます kakimasu (change く to き + ます)
• Negative: 書かない kakanai (change く to か + ない)
• Te-form: 書いて kaite (special sound change rule)
• Ta-form: 書いた kaita

Each u-verb follows the same pattern—just swap out the ending kana according to which conjugation you need. There are 5 main ending patterns for u-verbs in the te-form, based on the final syllable (く, ぐ, す, つ/る/う, ぬ/む/ぶ), and these patterns recur across thousands of verbs.

Ru-Verb Conjugation (Group 2)

Ru-verbs are simpler: drop the final る and add the conjugation ending directly. For example, 食べる (taberu, "to eat"):

• Masu-form: 食べます tabemasu (drop る, add ます)
• Negative: 食べない tabenai
• Te-form: 食べて tabete
• Ta-form: 食べた tabeta

No sound changes, no exceptions within the group—just drop る and attach. This regularity makes ru-verbs the easiest group to master.

Irregular Verb Conjugation

する and 来る must be memorized individually because they don't follow group patterns:

• する: します / しない / して / した
• 来る (kuru): 来ます (kimasu) / 来ない (konai) / 来て (kite) / 来た (kita)

These two verbs appear in thousands of compound expressions (e.g., 勉強する benkyō suru "to study," 持って来る motte kuru "to bring"), so you'll practice them constantly.

What Are Transitive and Intransitive Japanese Verbs?

Another critical classification is whether a verb is transitive (takes a direct object marked by を) or intransitive (does not). For example:

• 開ける akeru (transitive): "to open (something)" — ドアを開ける
• 開く aku (intransitive): "to open" (by itself) — ドアが開く

Many Japanese verbs come in transitive-intransitive pairs, and confusing them is one of the top Japanese grammar mistakes learners make. Understanding the を/が distinction and recognizing verb pairs will sharpen your comprehension and production. For detailed rules, examples, and JLPT practice, see the full guide to transitive and intransitive Japanese verbs.

How Should I Study Japanese Verbs for the JLPT?

The JLPT tests verb conjugation explicitly in the grammar section and implicitly everywhere else—reading, listening, and even vocabulary questions hinge on recognizing verb forms instantly. Here's how to build that speed:

1. Memorize the Three Groups and Their Rules

Before drilling individual verbs, make sure you can recite the conjugation rules for each group. Write them out once, then quiz yourself without notes. Use flashcards with the verb group marked on the back so you're always reinforcing which group each verb belongs to. Tools like Japanese flashcards for grammar can speed up this process.

2. Practice Conjugation Drills Daily

Pick 10 verbs and conjugate each into masu-form, te-form, ta-form, negative, and potential. Time yourself. Repeat daily with different verbs. This builds the muscle memory you need for real-time reading and listening. Many learners who follow a structured daily Japanese study routine dedicate 10–15 minutes to verb drills every morning.

3. Read Sentences, Not Just Verb Tables

Context cements memory. Use Japanese reading practice for beginners to see verbs in real sentences with grammar notes. When you encounter a verb, pause and identify its group, conjugation, and function in the sentence. This habit transforms passive recognition into active recall.

4. Review JLPT Grammar Patterns That Use Specific Verb Forms

Many JLPT N3 grammar patterns and higher require the negative stem (ず, ない-stem) or volitional form. For example:

• ずに ("without doing") — requires the negative stem
• ざるを得ない ("have no choice but to") — N2 pattern using the negative stem
• ずじまい ("end up not doing") — N1 negative stem pattern

By learning verb conjugation thoroughly at N5 and N4, you'll breeze through advanced grammar later.

Common Japanese Verbs Every Learner Should Know

Here are 20 high-frequency verbs with their group and English meaning—memorize these and you'll recognize a huge portion of everyday Japanese:

Notice that 帰る ends in -eru but is an u-verb—this is the kind of exception that trips up beginners. Mark these special cases in your notes or flashcards.

How Long Does It Take to Master Japanese Verbs?

If you study consistently, you can learn the three verb groups and basic conjugations (masu, te, ta, nai) in 2–4 weeks. Full fluency with all forms—potential, passive, causative, conditional—typically takes 3–6 months of daily practice. Your overall journey to Japanese fluency depends on many factors; for a realistic breakdown, read how long it takes to learn Japanese.

The key is active recall and spaced repetition. Don't just read conjugation tables—write sentences, speak them aloud, and test yourself without looking. Integrate verb practice into your daily study routine, and you'll see exponential progress.

Verbs and Particles: The Dynamic Duo

Japanese verbs almost never appear alone—they're accompanied by particles that mark the subject, object, direction, and more. Misunderstanding particles is the flip side of misunderstanding verbs. For example:

• 私は本を読む。 (Watashi wa hon o yomu. "I read a book.")
• 友達が来た。 (Tomodachi ga kita. "My friend came.")

The particles は, が, を, に, で, and others control the meaning of the verb. Master both together by studying Japanese particles explained and practicing real sentences. The classic confusion between は and が is so common we wrote a dedicated guide: wa and ga particles.

Next Steps: Put Your Verb Knowledge Into Action

Now that you understand the three verb groups, conjugation patterns, and how verbs fit into sentences, it's time to practice in context. Start with Japanese reading comprehension exercises to see verbs in real passages, or test your grammar with Japanese grammar quizzes that adapt to your level.

If you're preparing for the JLPT, use the JLPT N5 practice test to benchmark your verb recognition speed, then work your way up through N4 and N3. For a complete roadmap from zero to intermediate, check out Japanese lessons for beginners.

Remember: Japanese verbs are not a mountain to climb—they're a skill to drill. A few minutes of focused conjugation practice every day will make the difference between stumbling through sentences and reading fluently. Keep your verb list handy, quiz yourself relentlessly, and celebrate every form you master. You've got this, ninja!

Start Mastering Japanese Verbs Today →