pay的过去分词是paid。pay的基本意思是“付给”“付出”,指某人买东西或做某事所花费的金钱。引申可表示为“给予”。pay既可用作及物动词,也可用作不及物动词，还可接双宾语。

pay的例句

1. Interest is paid monthly. Three months' notice is required for withdrawals.

利息按月支付。提款须提前3个月通知银行。

2. Sandra was determined to become a doctor and her persistence paid off.

桑德拉决心成为医生，她的坚持取得了成功。

3. He paid for and was assigned a cabin in first class.

他付完钱后被安排到了头等舱。

4. He is cagey about what he was paid for the business.

他对自己在这桩买卖中所得的报酬不愿多提。

5. Every worker will be entitled to four weeks' paid holiday a year.

每位工人每年都能享受4周的带薪休假。