悪い子にはお仕置きが必要だ。の英語

Bad children need to be punished.

Stop playing pranks on me!

You should keep away from bad company.

It is you who is in the wrong.

It is you who is to blame.

It's you who's to blame.

Bad habits are easy to get into.

You must prepare yourself for the worst.

Stop being so mean to everyone.

It is necessary to prepare for the worst.

You must prepare for the worst.

We have to do away with such a bad custom.

Murder will out in the end.

Never associate with bad fellows.

We must eradicate this evil root and branch.

You're taking it too far.

the state or quality of looking really malicious

You must beware of that man―guard against that man―take heed of that man―（他動詞構文にすれば）―I must warn you against that man―caution you against that man―put you on your guard against that man.

It is plain that you are to blame.

Such a bad custom should be done away with.

Don't carry a practical joke too far.

it would needlessly bring badness into the world

You should prepare for the worst.

How embarrassing!

We must do away with such bad customs.

Don't talk about people behind their backs.

bad, but not very bad, behaviour or activities, particularly by children, which cause trouble and possibly damage or harm

Such a bad custom should be done away with.

It is wicked, yea devilish.

If you do only bad things, you will get your wrist slapped.