YOU SAID:
My cabbage decided to go for a walk with his mother.
INTO JAPANESE
私のキャベツは母親と散歩に行くことにしました。
BACK INTO ENGLISH
My cabbage decided to go for a walk with my mother.
INTO JAPANESE
私のキャベツは母と散歩に行くことにしました。
BACK INTO ENGLISH
My cabbage decided to go for a walk with my mother.
That didn't even make that much sense in English.