YOU SAID:
I sell seashells down by the seashore
INTO JAPANESE
海岸のそばで貝殻を売る
BACK INTO ENGLISH
sell seashells by the shore
INTO JAPANESE
海岸で貝殻を売る
BACK INTO ENGLISH
sell seashells on the shore
INTO JAPANESE
海岸で貝殻を売る
BACK INTO ENGLISH
sell seashells on the shore
You've done this before, haven't you.