JLPT N5 grammar
〜か: meaning and usage
Meaning
Marks a direct or embedded question; combines with question words to form indefinite expressions such as “someone” or “somewhere”; or links alternatives as “or.”
This point is also listed at N4.
How to form it
- polite form (です/ます)か
- question wordか
- nounかnoun
- verb (plain form)/い-adjective/noun/な-adjective (stem)か
How it is used
At the end of a sentence 「か」 makes a question; after a question word it means “some-” (「だれか」, someone); between nouns it means “or”. In an embedded question it follows the plain form, with no 「だ」 after a noun.
Examples
このパーティーはいつなのか、 友達に聞いてみよう。
Let's try asking a friend when this party is.
だれか来ましたよ。
Someone's here.
コーヒーか紅茶はいかがですか。
Would you like coffee or tea?
About the example In いつなのか, か marks the embedded question about when the party is, which the speaker proposes asking a friend.