die 是瞬间动词，过去式是died，过去分词为died
有两个形容词，为dead和dying
dead指死了的 dying为垂死的
如果现在完成时中要表示“（例如）他已经死了1年”，则要表示成“He has been dead for one year 。”
die是死亡这个动作。He
dies.
died是died的过去分词，可用作形容词，说明他已经死了这个状态。He
is
died.
death是名词，死亡
There
were
4
death
in
that
accidtent.
dead是形容词
He
has
been
dead
for
many
years.
dying是die的ing形式，可作形容词
垂死的
He
is
dying。
