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同学好
由于die是一个瞬间动词，没有延续性。所以不能用现在完成时。
直接用一般过去时表示就可以了，即：He died three years ago.

下面介绍一下瞬间动词和延续性动词之间的转换：

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。

常用的这种需转换的还有
leave→be away, borrow→keep, buy→have, begin/start→be on, die→be dead, move to→live in, finish→be over, join→be in/be a member of, open sth.→keep sth. open, fall ill→be ill, get up→be up, catch a cold→have a cold。

延续性动词用于现在完成时，其完成时态可与表示段时间的状语连用。表示段时间的短语有：for two years, during the past three years, since last year, how long等。

希望能帮助到你，祝学习愉快！