想了解以下句子中Being的使用原理是甚麼?
However, as you know, the space is so old that it needs some minor renovation
before being put on the market.
是因為before[being put on the market]為未來進行式嗎?
感謝解惑 >_<

that it needs. before it is put--> before being put

因為before是介系詞