arrived变为be here叫作什么

arrived变为be here 是指“终止性动词变为持续性动词”，一般是现在完成时态中肯定句与一段时间连用就要把终止性动词变为持续性动词。如

He arrived here two days ago. 他两天前到这里的。

= He has been here for two days.

= He has been here since two days ago.

他到这里两天了。

常见的终止性动词变为持续性动词的还有：

come / go -> be ; buy -> have; ?die -> be dead ; ?join -> be in / be a member of ; ?borrow/ lend -> keep 等

如

He come to this school three years ago.

= He has been in this school since three years ago.

他三年前来这个学校。

2. I bought the bike last month.

= I have had the bike since last month.

上个月我买这辆自行车。

3. The fish died two hours ago.

= The fish has been dead for two hours.

这条鱼死了两个小时了。

4. His brother joined the army last year.

= His brother has been in the army since last year.

他哥哥去年参军。

5. I borrowed the book two weeks ago.

= I have kept the book for two weeks.

两周前我借这本书。