why
01
なぜ, どうして
used for asking the purpose of or reason for something
例
Why are you late for school today?
なぜ今日学校に遅れたのですか？
Why did she choose that particular color for her room?
なぜ彼女は自分の部屋のためにその特定の色を選んだのですか？
02
なぜ
used to provide the reason for or the purpose of something
Why
01
理由, なぜ
the cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'
why
01
なぜ
used to introduce the reason for an action as the subject or object of the verb or preposition
例
I do n't know why he said that.
彼がなぜそう言ったのか分かりません。
Why he left is a mystery.
なぜ彼が去ったのかは謎です。
