YOU SAID:

so then I walked the dog

INTO JAPANESE

それで私は犬を歩いた

BACK INTO ENGLISH

So I walked the dog

INTO JAPANESE

だから私は犬を散歩した

BACK INTO ENGLISH

So I took my dog for a walk

INTO JAPANESE

犬を散歩に連れて行った

BACK INTO ENGLISH

I took my dog for a walk

INTO JAPANESE

私は犬を散歩に連れて行った

BACK INTO ENGLISH

I took my dog for a walk