YOU SAID:

elephants shouldn't sleep at malls

INTO JAPANESE

象はモールで寝てはいけない

BACK INTO ENGLISH

Elephants must not sleep in the mall.

INTO JAPANESE

象はモールで寝てはいけません。

BACK INTO ENGLISH

Elephants should not sleep in the mall.

INTO JAPANESE

象はモールで眠るべきではありません。

BACK INTO ENGLISH

Elephants should not sleep in the mall.