１０課

In Japanese, the 命令形 (meirei-kei), or imperative form, is used to give commands or orders, while the 禁止形 (kinshi-kei), or prohibitive form, is used to express prohibition or forbidding actions.

In Japanese, こと is used to give instructions, rules, or cautionary advice in a neutral, impersonal manner.

The expression べき is used to convey a sense of duty, obligation, or strong recommendation. The negative form, べきではない, is used to express something that should not be done.

たらどうか is a common Japanese expression used to suggest or encourage someone to take action, typically in a gentle, friendly way. It translates to "Why don’t you…", "How about…", or "I think it would be good if you…" in English.