〜っけ
Formation
Meaning
Used to confirm something that was forgotten or uncertain. It has a slightly conversational tone and can be used as a self-question or to ask someone else.
Note
A sentence-ending particle used to double-check information that you once knew but have momentarily forgotten, or to confirm something you're uncertain about. It's often used in casual conversation. When asking others, it can sound slightly softer than a direct question. Common patterns include '〜たっけ', '〜だっけ', or '〜だったっけ'. It can also be used in more formal speech as '〜でしたっけ' or '〜ましたっけ'.
Examples
名前は何とおっしゃいましたっけ？
What was your name again (polite)?
あの映画、もう見たっけ？
Have I seen that movie already?
そんなこと言ったっけ？
Did I say such a thing?
このパン、おいしかったっけ？
Was this bread delicious?
あの辺は静かだっけ？
Is it quiet around there again?
彼女はきれいだったっけ？
Was she beautiful again?
彼は、まだ学生だっけ？
Is he still a student?
テストは来週でしたっけ？
Was the test next week?
明日、パーティーがあるんだっけ？
Was there a party tomorrow?