YOU SAID:

My sister and brother are stupid

INTO JAPANESE

姉と弟は馬鹿だ

BACK INTO ENGLISH

My sister and my brother are stupid.

INTO JAPANESE

姉と弟は馬鹿だ。

BACK INTO ENGLISH

My sister and brother are fools.

INTO JAPANESE

私の姉弟は愚かだ。

BACK INTO ENGLISH

My sister and brother are stupid.

INTO JAPANESE

私の姉弟は馬鹿だ。

BACK INTO ENGLISH

My sister and brother are fools.

INTO JAPANESE

私の姉弟は愚かだ。

BACK INTO ENGLISH

My sister and brother are stupid.

INTO JAPANESE

私の姉弟は馬鹿だ。