疑問詞
Use these words to ask about people, things, places, time, choices, reasons, and more. You do not need to memorize everything at once — use this page when you need it.
A question word usually takes the place of the information you want to know.
何を聞きたい？
Start with what kind of information you want.
人・ものを聞く
Who is it?
What will you eat?
場所・時間を聞く
Where is the restroom?
When will you go to Japan?
どれ？ どの？
Use these when you are choosing from options.
Which one is it?
Which train is it?
Which one / which way?
方法・理由を聞く
What’s the weather like?
How will you get there?
Why are you studying Japanese?
Why?
種類・量を聞く
What kind of music do you like?
How much is this?
How many are there?
How long does it take?
「何」+ 数え方
何（なん） is often used with time words and counters. You do not need to memorize every combination here.
迷いやすいポイント
A useful shortcut: なに is common before particles; なん is common before です, の, and many counters.
どれ stands alone. どの always comes before a noun.
どう asks “how is it?” どうやって asks how something is done.
Both mean “why.” なんで is especially common in casual conversation.
どの疑問詞を使う？
Choose the question word, then tap to check.