YOU SAID:

I walked the dog yesterday

INTO JAPANESE

私は昨日その犬を歩いた

BACK INTO ENGLISH

I walked the dog yesterday.

INTO JAPANESE

私は昨日その犬を散歩させた。

BACK INTO ENGLISH

I let the dog go for a walk yesterday.

INTO JAPANESE

私は昨日その犬を散歩に行かせた。

BACK INTO ENGLISH

I sent the dog for a walk yesterday.

INTO JAPANESE

私は昨日その犬を散歩に行かせた。

BACK INTO ENGLISH

I sent the dog for a walk yesterday.