YOU SAID:

I need to buy toiletpaper for my children

INTO JAPANESE

子供のためにトイレットペーパーを買わなければならない

BACK INTO ENGLISH

I have to buy toilet paper for my kids.

INTO JAPANESE

子供たちのためにトイレットペーパーを買わなければなりません。

BACK INTO ENGLISH

I have to buy toilet paper for my kids.