何なん年ねん生せい

expression

what grade (in school)

Used to ask which year of school someone is in, typically from elementary through high school.

• お子こさんは何なん年ねん生せいですか。

  What grade is your child in?

• 彼かれは今いま、何なん年ねん生せい？

  What grade is he in now?