瞬间动词就是非延续动词,表示动作一产生就结束了,常用的瞬间动词有open, close, finish, begin, come, go, arrive, reach, get to, leave, move, borrow,buy,die,etc

现在完成时中如果用瞬间动词,一般其后不跟表示时间段的时间状语。

我们可以说the dog has died.但我们不可以说the dog has died for several days.此时需要把非延续性动词die变成延续性动词be dead。据此句子转变成the dog has dead for several days.是可以的