YOU SAID:
it was the best sand castle he had ever seen
INTO JAPANESE
それは彼が今まで見た中で最高の砂の城でした
BACK INTO ENGLISH
It was the best sand castle he has ever seen
INTO JAPANESE
それは彼が今まで見た中で最高の砂の城でした
BACK INTO ENGLISH
It was the best sand castle he has ever seen
You've done this before, haven't you.