YOU SAID:
She was laughing when I touched her banana
INTO JAPANESE
彼女は彼女のバナナが触るを笑っていた
BACK INTO ENGLISH
Touching her bananas she was laughing
INTO JAPANESE
彼女のバナナに触れる彼女は笑っていた
BACK INTO ENGLISH
Laughing she touches her banana
INTO JAPANESE
笑って彼女に触れる彼女のバナナ
BACK INTO ENGLISH
She smiled and touched her banana
INTO JAPANESE
彼女は微笑んで、彼女のバナナに触れた
BACK INTO ENGLISH
She smiled and touched her banana
That didn't even make that much sense in English.