N4 Grammar Course

Teacher

Marshall

Lesson 67: 〜だい/かい

Usage:

①疑問詞（何・どう・どんな・いつ）がある + だい
②疑問詞がない→+ かい

Meaning:

「〜だい/かい」is used to ask a question.

Notes:
①This is often used by male, and usually young people don’t use it.
②Don’t use it to your superior.
③If you can answer the question using 「はい・いいえ」, then you should use かい to ask the question, if you can’t answer the question using 「はい・いいえ」, then you should use だい to ask the question.
④If a verb is in the end, you can use 【Verb + ん + だい・かい】to emphasize the sentence. For example, 【いつ帰るんだい？】.

Example Sentences:

学校がっこうはどうだい。
How is school?

行いくかい。
Do you want to go?

これはおいしいかい？
Is this delicious?

先生せんせいはどんな人ひとだい？
What kind of person is the teacher?

先生せんせいは美び人じんかい？
Is the teacher beautiful?

パーティーはいつだい？
When is the party?

いつ帰かえるんだい？
When will you come back?

何なにをこそこそしているんだい。
What are you doing sneaking around?

潜水せんすいして泳およげるかい。
Can you swim underwater?

外がい出しゅつ中ちゅうに誰だれかから電でん話わがあったかい？
Did someone call me while I was out?

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