At a glance
Noun か Noun か means "A or B". It presents two (or more) choices, often before a question like どちら "which", or before わかりません "I don't know".
Noun A か Noun B か、...
コーヒーか紅茶か、どちらがいいですか。 Which would you like, coffee or tea?
How to form it
Put か after each noun. The pattern attaches to nouns and works in both polite and casual speech.
| Use | Example | Meaning |
|---|---|---|
| Choice + どちら / どっち | 肉か魚か、どちらがいいですか。 | Which is better, meat or fish? |
| Choice + particle | 月曜日か火曜日かに来てください。 | Please come on Monday or Tuesday. |
| Before わかりません | 学生か先生かわかりません。 | I don't know if it's a student or a teacher. |
Particles such as に and で come after the last か.