YOU SAID:

i wish he cared like he did before

INTO JAPANESE

私は彼が前のように気にしておけばいいのに

BACK INTO ENGLISH

I wish he had cared the way he used to.

INTO JAPANESE

彼が昔の気遣いをしていたらよかったのに。

BACK INTO ENGLISH

I should have cared for him in the old days.

INTO JAPANESE

私は昔彼の世話をすべきだった。

BACK INTO ENGLISH

I should have taken care of him a long time ago.

INTO JAPANESE

私はずっと前に彼の世話をすべきだった。

BACK INTO ENGLISH

I should have taken care of him a long time ago.