she has been dead for three years.解释下been的作用.我知道是现在完成时,但不明白为

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she has been dead for three years.解释下been的作用.我知道是现在完成时,但不明白为什么要加been.
如果不加been 直接写成she has deaded for three years.

1.现在完成=助动词(has have)+过去分词
2.been是be（is am are)动词的过去分词
dead是形容词（没有过去分词）,不是动词,表达死时,是表达一种状态（不是动词）死了.
所以这里,形容词前面只能用be动词,所能是is dead.
is 的过去分词是been.
所以用has been dead.

she has been dead for three years.解释下been的作用.我知道是现在完成时,但不明白为 He has been dead for three years jack has been dead for three years She said that her mother ( ) for three years.A.has been dead He has died for three years.He has been dead for three years 为什么是he has been dead for 10 years而不是he has dead for 10 years Her grandmother has been dead for two years 为什么是 He has been working there for three years是啥意思?好的我天天顶 My grandfather has been dead for many years.这句话为什么用has been的 His grandmother() for three years A.died B.dead C.has been d his grandpa has been dead for three years.改为同义句 She has been dead for ten years but she is still remembered