動

Japanese Verb Conjugation Tool

Conjugate any verb in present, past, te-form, negative - plain and polite.

✓ Free ✓ No Login Required ✓ Mobile Friendly

Select verb:

Group 1 (godan ～う/く/す/つ/ぬ/ぶ/む/る), Group 2 (ichidan ～る), Group 3 (irregular する/くる)

Japanese Verb Groups:

Group 1 (Godan/U-verbs): End in u-sound (く、す、つ、ぬ、ぶ、む、る - but NOT ichidan)
Group 2 (Ichidan/Ru-verbs): End in る with e or i sound before it (食べる、見る)
Group 3 (Irregular): する (to do) and くる (to come) only

About Verb Conjugation Tool

Japanese Verb Groups Explained

Japanese verbs are classified into three groups: Group 1 (godan/u-verbs) like 書く (kaku, to write), Group 2 (ichidan/ru-verbs) like 食べる (taberu, to eat), and Group 3 (irregular verbs) which includes only する (suru, to do) and 来る (kuru, to come). Each group follows different conjugation patterns.

Understanding which group a verb belongs to is the first step in conjugating it correctly. Our tool automatically identifies the verb group and shows all conjugation forms, saving you from memorizing complex rules while you are still learning the patterns.

How This Conjugation Tool Works

Enter any Japanese verb in its dictionary form (the plain present form ending in -u), and the tool generates all major conjugation forms instantly. Results include polite forms, negative forms, past tense, te-form, potential, passive, causative, conditional, and volitional forms.

Each conjugation is displayed with both hiragana reading and romaji pronunciation, making it accessible whether you are a beginner still learning kana or an intermediate student refining your grammar knowledge.

Essential Verb Forms for the JFT-Basic

The JFT-Basic exam primarily tests polite (masu) forms, te-form, plain past, negative forms, and the potential form. These cover the core communication patterns needed for daily life in Japan: making requests, describing past events, expressing ability, and polite conversation.

Focus your study on mastering these five form types first. The listening section frequently uses polite forms, while reading passages may include plain forms. Being comfortable switching between polite and plain speech is essential for the exam.

The Te-Form: Your Most Important Conjugation

Te-form (て形) is arguably the most versatile verb form in Japanese. It is used for making requests (食べてください), connecting actions (食べて飲んで), expressing ongoing actions (食べている), giving and receiving permission (食べてもいい), and many more grammatical structures.

For Group 1 verbs, te-form follows sound-change rules based on the final syllable. Our tool shows the correct te-form for every verb, helping you internalize these patterns through repeated reference until they become automatic.

Polite vs Plain Form

Japanese has two main speech levels: polite (丁寧語) using -masu/-desu endings, and plain (普通形) using dictionary and casual forms. The JFT-Basic exam tests both, and understanding when to use each is a key part of Japanese communication competence.

In workplace situations and with strangers, polite form is standard. Plain form is used with friends, in casual writing, and as a base for many grammar patterns. Nepali students working in Japan should default to polite form and use this tool to verify both polite and plain conjugations as needed.

How to Use Verb Conjugation Tool

Select a verb from the list or search for one by name.

View all conjugation forms displayed in a clear table.

Compare plain and polite forms side by side.

Practice the te-form conjugation for each verb group.

Frequently Asked Questions

What are the three Japanese verb groups? +

Group 1 (godan/u-verbs) includes most verbs ending in consonant + u, like 書く and 話す. Group 2 (ichidan/ru-verbs) are verbs ending in -iru or -eru, like 見る and 食べる. Group 3 contains only two irregular verbs: する (to do) and 来る (to come). Some verbs that look like Group 2 are actually Group 1, which is why a conjugation tool is helpful.

What is te-form and why is it important? +

Te-form is a verb conjugation that ends in て or で. It is used in dozens of grammar patterns including requests, progressive tense, permission, prohibition, and connecting multiple actions. Mastering te-form is essential for the JFT-Basic exam and daily conversation in Japan.

Which verb forms are tested on the JFT-Basic? +

The JFT-Basic primarily tests polite present and past forms (masu/mashita), negative forms (masen/nai), te-form for requests and connections, potential form for expressing ability, and basic conditional forms. These cover the practical communication needs tested across all four exam sections.

How do I know if a verb is Group 1 or Group 2? +

Most verbs ending in -iru or -eru are Group 2, while all other -u ending verbs are Group 1. However, some common exceptions exist: 帰る (kaeru, to return), 走る (hashiru, to run), and 入る (hairu, to enter) look like Group 2 but are actually Group 1. When in doubt, enter the verb in our tool to see its correct group classification and conjugations.

Should I learn polite form or plain form first? +

Most textbooks and the JFT-Basic exam start with polite (masu) form because it is what you use in everyday workplace and public situations. Learn polite form for practical communication first, then study plain form as you advance. Both are needed for the exam, but polite form is more immediately useful for Nepali workers in Japan.