YOU SAID:

The big cow was just lazily eating grass

INTO JAPANESE

大きな牛はただのんびりと草を食べていた

BACK INTO ENGLISH

The big cow was just eating grass

INTO JAPANESE

大きな牛はただ草を食べていた

BACK INTO ENGLISH

Big cows were just eating grass

INTO JAPANESE

大きな牛はただ草を食べていた

BACK INTO ENGLISH

Big cows were just eating grass