病床 びょうしょう使用 しよう りつじゃなかったです
byōshōshiyō ritsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 病床使用率

1. Wasn't bed occupancy rate.; Wasn't the bed utilization rate.

Past/Perfective
Negative
Polite
Casual Register