YOU SAID:
Hi can I go walk the dog.
INTO JAPANESE
こんにちは、私は犬を散歩に行くことができます。
BACK INTO ENGLISH
Hi, I can go for a dog walk.
INTO JAPANESE
こんにちは、私は犬の散歩に行くことができます。
BACK INTO ENGLISH
Hi, I can go for a dog walk.
That didn't even make that much sense in English.