YOU SAID:
i enjoy playing frisbee at the beach
INTO JAPANESE
私はビーチでフリスビーを楽しむ
BACK INTO ENGLISH
I enjoy frisbees on the beach
INTO JAPANESE
私は浜辺にいた
BACK INTO ENGLISH
I was on the beach.
INTO JAPANESE
私は浜辺にいた
BACK INTO ENGLISH
I was on the beach.
You've done this before, haven't you.