Explanation
Used to express that one is trying to recall some information.
Formation
Verb-casual + っけ?, い-Adjective + かったっけ?, な-Adjective/Noun + だっけ?
Detailed explanation
The ～っけ？ grammar point is added at the end of a sentence when the speaker is trying to recall something or confirm a memory. It can be used with verbs, adjectives, or nouns in casual form.
Examples
彼は何時に来るっけ？
Kare wa nanji ni kuru kke?
What time is he coming again?
この映画、面白かったっけ？
Kono eiga, omoshirokatta kke?
Was this movie interesting?
彼女は学生だっけ？
Kanojo wa gakusei dakke?
She was a student, right?
すし屋はどこだっけ？
Sushiya wa doko dakke?
Where was the sushi place again?
Practice
Grammar content sourced from hanabira.org.