YOU SAID:

he was a boy she was a girl can it get anymore obvious

INTO JAPANESE

彼は男の子だった彼女は女の子だった

BACK INTO ENGLISH

He was a boy she was a girl

INTO JAPANESE

彼は男の子で、彼女は女の子でした

BACK INTO ENGLISH

He was a boy and she was a girl

INTO JAPANESE

彼は男の子で、彼女は女の子でした

BACK INTO ENGLISH

He was a boy and she was a girl