YOU SAID:

betty bought butter but the butter was bitter so she bought better butter

INTO JAPANESE

ベティはバターを買ったが、バターが苦かったのでもっと良いバターを買った

BACK INTO ENGLISH

Betty bought butter, but it was bitter, so she bought better butter.

INTO JAPANESE

ベティはバターを買ったのですが、苦かったので、もっと良いバターを買いました。

BACK INTO ENGLISH

Betty bought butter, but it was bitter, so she bought better butter.