YOU SAID:
She sell seashells down by the seashore
INTO JAPANESE
彼女は海岸で貝殻を売ります
BACK INTO ENGLISH
She sells seashells on the shore
INTO JAPANESE
彼女は海岸で貝殻を売っています
BACK INTO ENGLISH
She sells seashells on the shore
You've done this before, haven't you.