禁止形prohibitive form (~na)
A strong command NOT to do something. Formed by adding 'na' to the dictionary form of a verb. Used in signs, emergencies, or by people in authority.
Common mistakes
- Confusing it with the particle 'na' used for emphasis
- Incorrectly using the nai-form instead of the dictionary form + na
- Using it with superiors (it is very blunt and rude)