YOU SAID:
THE DOG STEPPEEDOUTSIDE AND ATE A CAT
INTO JAPANESE
犬は外で歩き回り、猫を食べました
BACK INTO ENGLISH
The dog roamed outside and ate the cat
INTO JAPANESE
犬が外を歩き回り、猫を食べた
BACK INTO ENGLISH
The dog roamed outside and ate the cat
That didn't even make that much sense in English.