Mastering the Nai-Form(ない形) in Japanese: A Complete Guide for Beginners

nai form Japanese verb conjugation 初級 (beginner)
こんにちは(konnichiwa)! Hi, everyone. It's me Kanako. In this blog, I am sharing a great tip to learn Japanese along with some grammar and useful example sentences with English translations. You can search for them using the search bar.

The nai-form (ない形) in Japanese is essential for expressing negative actions and states. In this guide, we’ll explore how to conjugate different types of verbs into the nai-form. Let’s dive into the rules for transforming verbs into their negative counterparts and enhance your Japanese skills with this versatile form!

Group 1 (U-Verbs)

Rule:

  1. Change the final “i” sound of the verb stem into the corresponding “a” sound.
  2. Add “ない” (nai) at the end.
Verb(masu form)Nai form
かいます (kaimasu)かわない (kawanai)
はたらきます (hatarakimasu)はたらかない (hatarakanai)
およぎます (oyogimasu)およがない (oyoganai)
はなします (hanashimasu)はなさない (hanasanai)
まちます (machimasu)またない (matanai)
しにます (shinimasu)しなない (shinanai)
あそびます (asobimasu)あそばない (asobanai)
のみます (nomimasu)のまない (nomanai)
わかります (wakarimasu)わからない (wakaranai)

Group 2 (Ru-Verbs)

Rule: Simply remove ます (masu) and add ない (nai).

Verb(masu form)Nai form
たべます (tabemasu)たべない (tabenai)
ねます (nemasu)ねない (nenai)

Group 3 (Irregular Verbs)

Rule: These verbs are irregular and must be memorized.

Verb(masu form)Nai form
します (shimasu)しない (shinai)
きます (kimasu)こない (konai)

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