YOU SAID:

she told me that he said that she said like 3 days ago go walk the dog

INTO JAPANESE

彼女は3日前のように犬を散歩に行くと彼が言ったと私に言った

BACK INTO ENGLISH

She told me he said he would go for a walk with the dog like three days ago

INTO JAPANESE

彼女は彼が3日前のように犬と散歩に行くと言ったと私に言った

BACK INTO ENGLISH

She told me he said he would go for a walk with the dog like three days ago