What does いけません mean here?


犬は電車に乗ってはいけません。

Does this sentence mean something like this: "The dog can't get on the train"?
Is いけません the negative potential form of 行く?




The pattern here is 〜てはいけません which means "not allowed to", "must not", or
indicates something is prohibited. (I'm almost positive it is not the negative
potential of 行く, but someone can correct me on that if I'm wrong).

>   * 犬は電車に乗ってはいけません。 → Dogs are not allowed (to get) on the train.
>   * あの部屋に入ってはいけません。 → You must not go into that room.
>   * あきらめてはいけないよ！ → Don't give up! (lit., "You mustn't give up!"
>

Other similar prohibitive forms are 〜てはなりません and 〜てはだめ（です）.




The pattern here is 〜てはいけません which means "not allowed to", "must not", or
indicates something is prohibited. (I'm almost positive it is not the negative
potential of 行く, but someone can correct me on that if I'm wrong).

>   * 犬は電車に乗ってはいけません。 → Dogs are not allowed (to get) on the train.
>   * あの部屋に入ってはいけません。 → You must not go into that room.
>   * あきらめてはいけないよ！ → Don't give up! (lit., "You mustn't give up!"
>

Other similar prohibitive forms are 〜てはなりません and 〜てはだめ（です）.

