っけ — What Was It Again?
A casual sentence-final particle used to confirm or recall something half-forgotten — 'what was it again?' or 'was it...?'. It softly asks oneself or the listener to jog a fuzzy memory, and belongs strictly to informal speech.
Structure
[Plain form / た-form] + っけ (nouns/な-adj often take だ(った)っけ)
Examples
あの人の名前、何だっけ？
Ano hito no namae, nan dakke?
What was that person's name again?
Noun 何 + だっけ asks to recall a forgotten name in casual speech.
明日って休みだったっけ？
Ashita tte yasumi datta kke?
Was tomorrow a day off again?
だった + っけ confirms a half-remembered fact about tomorrow.
この鍵、どこに置いたっけ？
Kono kagi, doko ni oita kke?
Where did I put this key again?
Verb た-form 置いた + っけ voices trying to recall one's own past action.
• Strictly casual — do not use in formal or polite writing. • Often used talking to oneself, or checking shared memory with a friend. • Nouns/な-adjectives usually take だっけ or だったっけ.
Commonly confused with
The JLPT rarely asks whether you recognise a pattern — it asks which of several similar patterns fits. These are the ones っけ is tested against.
vs か (question)
Plain か asks a fresh question, while っけ specifically probes a memory you once knew but have half-forgotten.
vs よね
よね seeks agreement on something you believe is true; っけ admits uncertainty and asks to reconstruct a fuzzy memory.
More expressions
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