Grammar
N4AI-drafted〜なさい
do (gentle command)
Formation
V-ます形(ますを取る) + なさい
Usage
A soft but clear command used by someone in a higher position toward someone lower: parents to children, teachers to students, or in test instructions. It is politer than the plain imperative 〜しろ/〜え but still an order, so you must not use it to a superior or a customer. In exam papers and textbooks it appears in forms like 「答えなさい」「書きなさい」. Casual speech often shortens it to 〜な (早く食べな).
Examples
早く寝なさい。
はやくねなさい。
Go to bed early.
次の質問に日本語で答えなさい。
つぎのしつもんににほんごでこたえなさい。
Answer the following questions in Japanese.
ゲームをやめて、宿題をしなさい。
げーむをやめて、しゅくだいをしなさい。
Stop playing games and do your homework.