YOU SAID:

My sister is failing school she is really dumb

INTO JAPANESE

私の妹は学校を失っていて、彼女は本当に愚かです

BACK INTO ENGLISH

My sister has lost school and she is really stupid

INTO JAPANESE

私の妹は学校を失い、彼女は本当に愚かです

BACK INTO ENGLISH

My sister lost school and she is really stupid

INTO JAPANESE

私の妹は学校を失い、彼女は本当に愚かです

BACK INTO ENGLISH

My sister lost school and she is really stupid