Excuse me! すみません、… sumimasen , …
Mister, sir …さん…san
Ma'am …さん…san
Miss …さん…san
Young man …さん…san
Young man (little boy) …ちゃん…chan
Miss (little girl) …ちゃん…chan
Who? 誰? dare? What? 何? nani? Where? (at, in) どこに? doko ni? Where (to)? どちらへ? dochira he? From where? どこから? doko kara? When? いつ? itsu? Why? (What for?) なんで? nande? Why? (reason) どうして? dōshite? What for? 何のために? nan no tame ni? How? (in what way) どうやって? dō yatte? What? (What kind of...?)どんな ? donna? Which? どちらの…? dochira no …? To whom? 誰に? dare ni? About whom? 誰のこと? dare no koto? About what? 何のこと? nannokoto? With whom? 誰と? dare to? How many? いくつ? ikutsu? How much? いくら? ikura? Whose? 誰のもの? Dare no mono?