When (What time) is the next train? つぎのでんしゃはいつ（なんじ）ですか？ Tsugi no densha wa itsu (nanji) desu ka?
What time is the meeting? かいぎはなんじからですか？ Kaigi wa nanji kara desu ka? [Direct transation] Meeting is what time from is it?
When should I arrive? いつ（なんじに）つけばいいですか？ Itsu (nanji ni) tsuke ba ii desu ka? [Direct translation] When (at What time) arrive should I?
When will we leave? いつ（or なんじに）しゅっぱつしますか？Itsu (nanji ni) shuppatsu simasu ka? [Direct translation] When (at what time) leave will we?
When can we talk? I have something to talk. いつはなせますか？はなしたいことがあります。Itsu hanasemasu ka? Hanashi tai koto ga arimasu. [Direct translation] When can talk? Want to talk a thing about I have.
Who is that? あのひとはだれですか？ Ano hito wa dare desu ka? [Direct translation] That person is who is it?
Who is he talking to? かれはだれとはなしていますか？Kare wa dare to hanashite imasu ka? [Direct translation] He is who with talking?
Whose phone is this? このけいたいは、だれのですか？Kono keitai wa dare no desu ka? [Direct translation] This phone is whose is it?
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