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Question marker
Definition
The question marker "か" is used to form a question at the end of a sentence, indicating that the speaker is seeking information or confirmation. It can also be used between nouns to mean 'or', implying a choice between two options. In casual speech, "か" can be replaced by rising intonation, making the sentence sound like a question. This pattern is commonly used in polite questions, and forgetting to use "か" at the end of a polite question is a common mistake.
Structure
| Form | Pattern | Example |
|---|---|---|
| Polite question | Verb form + か | これは何ですかか |
| Choice between two options | Noun 1 + か + Noun 2 | コーヒーかお茶 |
| Rising intonation | Noun phrase | 明日は雨ですか? |
Examples
これは何ですかか
Kore wa nan desu ka
What is this?
これは (this is) + 何ですか (what is it) + か (question marker)
コーヒーかお茶、どちらにしますか
Kōhī ka o-cha, dochira ni shimasu ka
Do you want coffee or tea?
コーヒーか (coffee or) + お茶 (tea) + どちらに (which one) + しますか (will you do)
明日は雨ですかか
Ashita wa ame desu ka
Will it rain tomorrow?
明日は (tomorrow is) + 雨ですか (will it rain) + か (question marker)
この本は読みましたか
Kono hon wa yomimashita ka
Have you read this book?
この本は (this book is) + 読みましたか (have you read it) + か (question marker)
Context
The question marker "か" is used in polite questions, and it's essential to use it at the end of a sentence to form a question. In casual speech, "か" can be replaced by rising intonation, but in writing or formal speech, it's better to use the "か" explicitly. This pattern is often confused with the "と" pattern, which is used to connect two items, but "か" is used to indicate a choice between two options.
Watch out
Forgetting "か" at the end of a polite question can make the sentence sound like a statement instead of a question.
Using "か" to connect two items can make the sentence sound confusing, and using "と" to indicate a choice between two options can make the sentence sound incorrect.
Using rising intonation instead of "か" can make the sentence sound informal or casual, and it's better to use "か" explicitly in writing or formal speech.
Strategy
When answering a question that uses the "か" pattern, make sure to use the correct verb form and polite language. Also, pay attention to the context and the speaker's intention to determine the correct answer.
In context
Worked examples drawn from JLPT N5 test-style questions. Each sentence shows 〜か used correctly, with a brief note on what the pattern is doing.
これは何ですか。
Pattern used: か
か at the end of a polite sentence turns it into a question. 'What is this?'
コーヒーかお茶、どちらにしますか。
Pattern used: か
か between nouns means 'or.' 'Coffee or tea — which will you have?' It presents alternatives.
明日は雨ですか。
Pattern used: か
か turns the statement into a question asking for confirmation. 'Is it rain tomorrow?' / 'Will it rain tomorrow?'
Interactive
これは何です______。
Adaptive practice
Our adaptive engine will quiz you on this grammar pattern and track your progress toward mastery.