YOU SAID:
he’s been told he needs a knee replacement and had been waiting over a year
INTO JAPANESE
彼は膝の交換が必要だと言われ、1年以上待っていた
BACK INTO ENGLISH
He was told he needed a knee change and had been waiting for more than a year
INTO JAPANESE
彼は膝の変更が必要だと言われ、1年以上待っていた
BACK INTO ENGLISH
He was told he needed a knee change and had been waiting for more than a year
You should move to Japan!