1、llastyear是一般過去式。

2、last year的意思是去年，表示的是過去時態，句子中的動詞要用過去式表示

3、例句：

Who could forget his speech at last years party?

誰能忘記他去年在聚會上的講話呢？ 擴充套件資料

　　The house came on the market last year.

　　這棟房屋去年就上市了。

　　This year's results are virtually the same as last year's.

　　今年的.結果幾乎和去年的一樣。

　　Company profits were 5% lower than last year.

　　公司的利潤比去年降低了5%。

　　The hospital closed at the end of last year.

　　這所醫院去年年底關閉。