YOU SAID:

i whould kill you for stealing my cookie

INTO JAPANESE

私はあなたのクッキーを盗んであなたを殺すべきです

BACK INTO ENGLISH

I should steal your cookie and kill you.

INTO JAPANESE

私はあなたのクッキーを盗んで、あなたを殺すべきです。

BACK INTO ENGLISH

I should steal your cookie and kill you.