Japanese grammar · ≈ JLPT N5 · Beginner 2
普通形futsuu kei
casual plain speech forms
Use 「普通形」 with friends or family; verbs, adjectives, and nouns each change endings for tense and negation.
- Pattern
- 普通形
- Romaji
- futsuu kei
- JLPT (approx.)
- ≈ N5
- Course level
- Beginner 2
- Theme
- Introducing Your Life
How it works

When talking with friends, family, or others you are close to, you often use the plain form for a casual tone.

Look at the right column: plain-form endings vary by word type. You cannot simply remove 「ます」 in every case.

For affirmative verbs in the present, use the dictionary form: 「行きます」 becomes 「行く」, not 「行き」.

Verbs have four plain forms: non-past/past and affirmative/negative. Keep the tense and polarity when changing forms; the past negative changes ない to なかった.

For affirmative い-adjectives in the present, remove 「です」 and keep the final 「い」: いいです→いい.

Plain forms of い-adjectives use neither です nor だ. Ending changes express negation and the past; keep the original tense and polarity when changing forms.

For affirmative noun sentences in the present, replace 「です」 with 「だ」: バイトです→バイトだ.

The stem of a な-adjective stays unchanged; change the sentence ending to make the four plain forms. In conversation, じゃない and じゃなかった are common negative forms.

Nouns and な-adjectives use the same sentence endings. だ, だった, and the negative forms distinguish the four plain forms. The past negative cannot use just じゃない.

Questions in plain style often omit 「か」. Raise your pitch at the end so the listener hears that you are asking a question.

In the example, 「行く?」 and 「食べる?」 ask about today’s plans. The dictionary form can also refer to the future.

In 「これ何?」, the example omits 「だ」 in a noun question. This is a natural way to ask a friend.
Example sentences
- 今日kyouどこdokoにni行く?iku何nani食べる?taberu
Where are you going today? What are you going to eat?
- これkore何?nan
In a conversation

- Aねえ、明日何する?
A: Hey, what are you doing tomorrow?
- B明日はバイトなんだ。午後は?
B: I have a part-time job tomorrow. How about the afternoon?
Check yourself
Which sentence is correct?
- 明日、どこで会う?
- 明日、どこで会うす?
- 明日、どこで会うを?
- 明日、どこで会うに?
Show answer
Answer: A 明日、どこで会う?
Which sentence is correct?
- 昼ごはん、何にする?
- 昼ごはん、何にするを?
- 昼ごはん、何にするな?
- 昼ごはん、何にするに?
Show answer
Answer: A 昼ごはん、何にする?
Which sentence is correct?
- このアプリ、どうやって使うの?
- このアプリ、どうやって使うのさ?
- このアプリ、どうやって使うのを?
- このアプリ、どうやって使うのま?
Show answer
Answer: A このアプリ、どうやって使うの?
More grammar in this theme
- 普通形casual plain speech forms