firsttime的完成時態是什麽？

1.當the first time作連詞用,引導壹個時間狀語從句時,從句壹般用過去式,例如：

He fell in love with Mary the first time he saw her.(他對瑪麗壹見鐘情.)

2.當the first time用在“It is/was the first time that……”結構中時,從句壹般用完成式.如果前邊用“is”,從句用現在完成式；如果前邊用“was”,從句用過去完成式.例如：

It is the first time that I have heard the news.這是我第壹次聽說這個消息.

It was the first time that he had been to Beijing.這是他第壹次去北京.