Japanese Question Words

Japanese asks questions without reordering anything. Keep the sentence as it is, swap in a question word, and add か at the end.

Updated 2026-08-08

The question words

誰 だれ dare

DAH-reh

who

何 なに nani

NAH-nee

what

Shortens to nan before desu and counters

どこ doko

DOH-koh

where

いつ itsu

EE-tsoo

when

どうして dōshite

DOH-shteh

why

なぜ naze is the more formal version

どう

doh

how

どれ dore

DOH-reh

which one

どの dono in front of a noun

いくら ikura

ee-KOO-rah

how much

いくつ ikutsu

ee-KOO-tsoo

how many

One particle does all the work

Adding か, ka, to the end of a statement makes it a question. Nothing else moves. 学生です means I am a student; 学生ですか means are you a student.

That means there is no inversion to learn, no do to insert, and no word order to rearrange.

The question word simply sits where the answer would go. どこですか, doko desu ka, is literally where is it, with doko standing in the spot the place name would occupy.

Written Japanese often skips the question mark, because か already marks it. A question mark appears mostly in casual writing where the か is dropped.

何 has two readings. It is nani on its own but nan in front of desu or a counter: 何ですか is nan desu ka, 何人 is nannin.

  • お名前は何ですか。What is your name?
  • トイレはどこですか。Where is the toilet?
  • いくらですか。How much is it?

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