YOU SAID:

i have to go to the store and buy milk. dont know when ill be back

INTO JAPANESE

店に行って牛乳を買わなければなりません。病気がいつ戻ってくるかわからない

BACK INTO ENGLISH

I have to go to the store and buy milk. I don't know when the disease will come back

INTO JAPANESE

店に行って牛乳を買わなければなりません。いつ病気が再発するかわからない

BACK INTO ENGLISH

I have to go to the store and buy milk. You don't know when the disease will come back

INTO JAPANESE

店に行って牛乳を買わなければなりません。病気はいつ再発するかわかりません

BACK INTO ENGLISH

I have to go to the store and buy milk. I don't know when the disease will come back

INTO JAPANESE

店に行って牛乳を買わなければなりません。いつ病気が再発するかわからない

BACK INTO ENGLISH

I have to go to the store and buy milk. I don't know when the disease will come back