YOU SAID:

today i went to the store and bought milk for my dad, i went back home and dad was having a seizure

INTO JAPANESE

今日私は店に行って父に牛乳を買って家に帰ったら父が発作を起こしていました

BACK INTO ENGLISH

today i went to the store and bought some milk for my dad and when i got home he had a seizure

INTO JAPANESE

今日、私は店に行って父に牛乳を買ったのですが、家に帰ると父が発作を起こしました。

BACK INTO ENGLISH

Today I went to the store to buy some milk for my father and when I got home he had a seizure.

INTO JAPANESE

今日、父に牛乳を買いに店に行ったのですが、家に帰ると父が発作を起こしました。

BACK INTO ENGLISH

Today I went to the store to buy milk for my father and when I got home he had a seizure.

INTO JAPANESE

今日、父に牛乳を買いに店に行ったのですが、家に帰ると父が発作を起こしました。

BACK INTO ENGLISH

Today I went to the store to buy milk for my father and when I got home he had a seizure.