YOU SAID:

he said she said my auntie crossed the river with my uncle

INTO JAPANESE

彼は言った 彼女は私の叔母が叔父と一緒に川を渡ったと言った

BACK INTO ENGLISH

he said she said my aunt crossed the river with her uncle

INTO JAPANESE

彼は言った、彼女は私の叔母が叔父と一緒に川を渡ったと言った

BACK INTO ENGLISH

he said she said my aunt crossed the river with her uncle