மொழிப்பற்றுMozhippattru · Japanese Language School
← Back to all articles
GrammarVerbsJLPT N5

Negative Forms in Japanese (ません and ない)

19 June 2026 · Mozhippattru Japanese Language School

Expressing “not” in Japanese is systematic, not random. Here are the negative forms you'll use every single day, in both polite and casual speech.

Polite negative: 〜ません

Change 〜ます to 〜ません: 飲みます → 飲みません (do not drink), 行きます → 行きません (do not go). Simple, and always polite.

Casual negative: the ない-form

  • る-verbs: drop る, add ない — 食べる → 食べない
  • う-verbs: change the final “u” to “a” + ない — 飲む → 飲まない (note: 〜う becomes 〜わない, e.g. 買う → 買わない)
  • Irregulars: する → しない, 来る → 来ない

Adjectives and nouns

  • い-adjectives: 高い → 高くない (not expensive)
  • な-adjectives / nouns: 静かじゃない / 学生じゃない

Examples

  • 今日は行きません。 — I am not going today. (polite)
  • お金がない。 — I have no money. (casual)

Practice tip

Learn the polite 〜ません first — it is safe everywhere. Then add the casual ない-form as you progress. Practise by negating sentences you already know.

Get the forms right

Mozhippattru drills negatives clearly in Tamil so you never mix them up. Book a free demo.

About the Teacher
Arul Prakash
Founder & Teacher · JLPT N1-certified (2022)

Arul Prakash founded and personally teaches at Mozhippattru. He cleared JLPT N1 largely through self-study and spent 4 years as a Japanese interpreter for Fujitsu, Toyota and Sango — and now teaches Japanese in Tamil to beginners across India.

Read his story →
Ready to learn Japanese?

Join Mozhippattru Japanese Language School — JLPT N5–N3 with N1-certified teachers. Book a free demo class, no commitment.

Book a Free Demo →

Continue reading

Japanese Grammar Explained in Tamil (Your Mother Tongue)
Japanese grammar is far easier when explained in Tamil. How Tamil and Japanese sentence structure line up, real examples, and why mother-tongue teaching helps you learn faster.
50 Must-Know Japanese Verbs for Beginners
The everyday verbs that appear constantly in JLPT N5–N4 and daily conversation.
Colors in Japanese — Vocabulary and a Grammar Quirk
Learn Japanese colors, and the interesting reason some behave like adjectives and others like nouns.

Developed & maintained by Nexaex Digital Services Pvt. Ltd. · nexaex.in