Meaning
The ~は いけません pattern expresses strict prohibition and is used to indicate what one must not do according to rules or regulations. It conveys a firm, authoritative tone and is commonly used when stating warnings or restrictions. The te-form variant (~て形 + は いけません) sounds even more emphatic and forceful than the base form.
Formation
| Part of speech | Formation |
|---|---|
| 动词 | 動詞て形＋は いけません |
Examples
-
店の 入り口の 前に 駐車しては いけません。
You must not park in front of the store entrance. -
あなたは お酒を 飲んだから、運転しては いけないよ。
Since you've been drinking, you cannot drive. -
この博物館では、写真を 撮っては いけません。
Photography is not permitted in this museum.
Summary
- Used to express firm prohibition based on rules or restrictions
- The te-form version (~て形 + は いけません) sounds stronger and more emphatic
- Commonly used for warnings, regulations, and notices in formal contexts