YOU SAID:

I believe that cows are evil.

INTO JAPANESE

私は牛が悪いと信じています。

BACK INTO ENGLISH

I believe cows are bad.

INTO JAPANESE

牛が悪いと思います。

BACK INTO ENGLISH

I think cows are bad.

INTO JAPANESE

牛が悪いと思います。

BACK INTO ENGLISH

I think cows are bad.