it is not allowed to do something(不允许做某事)
Doing(something) is strictly forbidden(严格禁止做某事)
To do something is not allowed (forbidden).(做某事是不允许的)
不允许做某事还有如下方式表达:
No Doing (something),例如:
No Parking (禁止停车)
No Smoking (禁止抽烟)
No Swimming (禁止游泳)
不被允许做某事的英文
表示不被允许做某事的英文可以是: be not allowed to do sth, be not permitted to do sth等。