てはいけません

てはいけません is a grammar point used to express prohibition. It combines the て form of verbs with the phrase はいけません, which means "must not" or "is not allowed." This expression is commonly used in both spoken and written Japanese to communicate rules or restrictions.

For example, when you tell someone that they cannot do something, you would use this phrase to clarify what is prohibited. It has a formal tone, making it suitable for various contexts such as schools, workplaces, and everyday conversations when addressing rules.

• This grammar is essential for beginners to understand boundaries and rules in the Japanese language.
• It conveys a clear prohibition without sounding overly harsh.