hasbeendead是什么时态

是现在完成时，例如：

1、He has been dead for three years.他已经死了三年了。

2、I mean it has been dead for a couple of days.我是说它已经死了几天了。

3、The old man has been dead for a year.老人去世一年了。

4、Yes， his wife has been dead for years.是的，他的妻子已经去世好几年了。