っけ

Particle (usually used in conversation) (Advanced ㊤ 223)

A colloquial sentence final particle marking a question.

鈴木さんは英語が話せるんだっけ。: Can you speak English, Mr. Suzuki? / Can Mr. Suzuki speak English?
鈴木さんは英語が話せた（んだ）っけ。: Can you speak English, Mr. Suzuki? / Can Mr. Suzuki speak English?
今日は木曜日だ(った)っけ。: Is today Thursday?
ジェーンさんはピアノが弾けた（んだ）っけ。: Can you play the piano, Jane? / Can Jane play the piano?
パーティーは何時に始まるんだっけ。: When does the party start?
スミスさんはワシントン大学の学生だったっけ。: Are (Were) you a University of Washington student, Ms. Smith? / Is (Was) Ms. Smith a University of Washington student?
僕が子供の頃はこの辺は林だったっけ。: When I was a kid this area used to be a forest.
この映画、面白いんだっけ。: Is this movie interesting?
あの人って、正直なんだっけ。: Is he an honest person?

Formation

(i) {V/Adjective い}informal nonpast	んだっけ
	{話す/美味しい}んだっけ	Does someone talk?/Is something delicious?
(ii) {V/Adjective い}informal past	(んだ) っけ
	{話した/美味しかった}(んだ) っけ	Did someone talk?/Was something delicious?
(iii) {Adjective なstem/Noun/Wh-word}	(なん)だっけ
	{元気/学生}(なん)だっけ	Is someone healthy/a student?
	{なん/誰/どこ/いつ}(なん)だっけ	What/who/where/when is it?
(iv) {Adjectiveなstem/Noun/Wh-word}	だった(んだ) っけ
	{元気/学生}だった(んだ) っけ	Was/is someone healthy/a student?
	{なん/誰/どこ/いつ}だった(んだ) っけ	What/who/where/when was/is it?

Notes