How to say “My grandparents have lived in the same apartment building for forty years and know every neighbor by name.” in Japanese
In Japanese
祖父母は同じマンションに四十年住んでて、ご近所さんの名前を全員知ってるんだ。
Sofubo wa onaji manshon ni yonjūnen sundete, gokinjo-san no namae o zen'in shitteru n da.