You can use the pattern て-form + はいけません to say that something is not permitted. The て-form + はいけません is a strict way of saying someone can't do something. Later you will learn kinder ways of asking someone to refrain from doing something.
Check out the sentences below for some examples for how this pattern is used.
| English | Japanese |
|---|---|
| You must not smoke here. | ここ で タバコ を 吸って は いけません。koko de tabako o sutte wa ikemasen. |
| In Japan, wearing shoes inside the house is not allowed. | 日本 で、 家 の 中 で 靴 を 履いて は いけません。nihon de, ie no naka de kutsu o haite wa ikemasen. |
