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Turns sentence A into a question (casual).
  1. Turns sentence A into a question (casual).
  2. Used by young males to make an assertion (ending in A)
32
何故 君 は 僕 に 冷 た い 乃 だ い ？ 
Why are you cold with me ?
3
16
貴方 、 何 で 豚 と 一 緒 な 乃 だ い ？ 
Why are you with a pig ?
0
30
其 れ で 君 は 如何 為 る 乃 だ い ？ 
And what do you do ?
0
2
君 の お 母 さ ん は ど ん な 人 だ い ？ 
What kind of person is your mother?
0
2
日本語 検 定 の 試 験 は 何時 有 る 乃 だ い ？ 
When's the Japanese certification test?
0
10
今 度 は 誰 の 番 だ い 。 
Whose turn is it next?
0
10
其方 の 生 活 は 如何 だ い ？ 
How are things for you up there?
0
18
そ れ で は 、 何時 ま で に 返 事 を 呉 れ る 乃 だ い ？ 
Well then, by when will you give me a reply?
0
23
何故 、 君 は 、 そ ん な に 悲 し そ う な 顔 を す る 乃 だ い ？ 
Why are you making such a sad face?
1
7
君 の 卒 業 論 文 の テ ー マ は 何 だ い ？ 
What's the theme of your graduation thesis?
0

Getting the sentences
Construction
(Elements in parentheses are optional.)
ANoun
な
ん
だい
Basic Examples:
どんなスポーツな乃だい？ (. What kind(s) of sports?)

Aい adjective
ん
だい
Basic Examples:
何れが短い乃だ？ (Which one is short?)

Aな adjective
な
ん
だい
Basic Examples:
何故静かな乃だい？ (Why (are you) quiet?)

AVerb: Casual
ん
だい
Basic Examples:
誰が言った乃だい？ (Who said (that)?)

ANoun
だい
Aな-adjective: (without な)
だい
AQuestion word
だい
Basic Examples:
何処だい？ (Where?)

Notes
Used primarily by adult males. Cannot be used with yes/no questions.
Related Expressions
かい
の
Where this grammar is found


Grammar usage notes

In general, "かい" is used when the answer is supposed to be "yes or no" type. "んだい" is used when the expected answer is more open.
10
1
avatar
Ramon E
Level: 595
AFAIK ん だい can sound bossy, masculine or rough. Avoid using this form if you don't wan't to come off as pushy, rough or unladylike.
1
0
avatar
pup72
Level: 1554

Questions/Discussion

Nothing posted yet!
 
Used by young males to make an assertion (ending in A)
  1. Turns sentence A into a question (casual).
  2. Used by young males to make an assertion (ending in A)
0
僕 だ っ た ら 大 丈 夫 だ い 。 
I'd be fine if it was me.
0
11
引 っ 越 す なんて 嘘 だ い 。 
It's a complete lie that I'm moving.
0

Getting the sentences
Construction
(Elements in parentheses are optional.)
ANoun
 
Aな-adjective: (without な)
 
 
だい
Where this grammar is found


Grammar usage notes

Nothing posted yet!

Questions/Discussion

Nothing posted yet!

Discussion about this grammar
This section has been archived, and no new posts can be added. Please use the discussion form(s) above.
avatar
3nzo
Level: 1
Is this form commonly used? Should I use it with regularity or not?
0
13 years ago
avatar
できるだけ
Level: 28
No. だい is quite masculine and not used much in regular speech (at least by people around me - Kansai). I see it more often in media where speech differences may be played up a bit (novelist Higashino Keigo is especially fond of だい, and of かい) but using it in real life is kind of comparable to (Kanto women) ending sentences with わ.
10
13 years ago
avatar
shirokitsune
Level: 1762
ねぇ、この小さいビキニ、一体だれが着るんだい？えっ私なの？ is an example sentence but it makes me feel like without context or a picture that it is a woman speaking when this is a masculine grammar point. I was fairly confused from reading it and then the grammar usage point. The feminine ねぇ at the beginning also kind of makes the sentence a little odd as you start feminine and switch to masculine and back to feminine with なの。
2
11 years ago
avatar
マイコー
Level: 346

You're right - it isn't the best representative sentence. I'll be removing it. Thanks.

1
11 years ago
avatar
|マルコ|
Level: 110

I think this grammar point needs some rework, I'll list the additions/changes I think it needs:

A)It should be titled under だい, and possibly include んだい separated in the same page, one of the difference being (quote from DoBJG) "Questions with だい, and those with んだい, correspond to questions without のです and those with のです in formal speech, respectively."

B)Another difference is in their construction:

だい can follow only な type adjective stems, nouns and noun equivalents. The following sentences are ungrammatical because だい follows a verb or an い type adjective.

a. *だれが行くだい。Who is going? WRONG
b. *どれがおもしろいだい。Which one is interesting? WRONG

んだい can follow verbs and い type adjectives.

C)DoBJG describes だい as "A sentence final particle which indicates an interrogative word question in informal male speech. " so both the fact it accompanies an interrogative word (誰、どこ、なに etc...) and the fact is male speech, should be mentioned.

D)This is a third, separate usage of だい:

だい can also be used with declarative sentences for emphasis in boys' speech:

a. これは僕のだい。

This is mine.

b. 僕も行くんだい。

I will go, too.

1
5 years ago
avatar
マイコー
Level: 346

Added the additional usage patterns, added the note about male speech in the Notes area, and added the second meaning!

1
5 years ago


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