なさい

なさい
auxiliary
(imperative ending)
grammatical
1. do (command/instruction)
An auxiliary verb attached to the stem of verbs to form polite commands, commonly used by superiors to subordinates or parents to children.
Make sentences using the words in parentheses.
Common in test instructions.
Hurry up and get up.
静(しず)かにしなさい。
Be quiet.

なさい is attached to the verb stem (masu-stem) to form commands.

Forms

Usage

  • Parents to children
  • Teachers to students
  • Test/exam instructions
  • Superiors to subordinates

Register

Less harsh than plain imperative (食(た)べろ), but still a command.
More commanding than 〜てください.

Common expressions

Several everyday set phrases contain the same form: おやすみなさい (good night), おかえりなさい (welcome home), ごめんなさい (I'm sorry).