had being

• conj. 已经正在

had being的用法和样例：

例句

1. He postulated that a cure for the disease will have been found by the year 2000.
   他推断到2000年能研究出治愈该病的方法。
2. Our partnership dates back to (ie We have been partners since) 1960.
   我们从1960年就合伙了。
3. I had been a footman for 20 years.
   我曾做过20年的听差。
4. I have been instructed by my agent that you still owe me 100 pounds.
   我的代理人通知我，你还欠我100磅。