YOU SAID:

I forgot to walk the dog

INTO JAPANESE

犬の散歩を忘れた

BACK INTO ENGLISH

I forgot to walk my dog.

INTO JAPANESE

犬に餌をやるのを忘れた。

BACK INTO ENGLISH

I forgot to feed my dog.

INTO JAPANESE

犬に餌をやるのを忘れた。

BACK INTO ENGLISH

I forgot to feed my dog.