だいかい
(Dai kai)
Informal question markers often used by males or elder speakers.
Connection rules
- ＋Question-word + (Plain form) + だい
- ＋Verb/Adjective (Plain form) + かい
Examples
1.
これはいったい何だい。
Kore ha ittai nani dai.
What on earth is this?
「Grandpa finding something strange」
2.
明日の試験は準備できたのかい。
Ashita no shiken ha junbi deki ta no kai.
Are you ready for tomorrow's exam?
「Father asking his son」
Practice
Where are you going then? (Informal male/elderly style)
こんな時間に、いったい___。
Romaji also accepted