has 或have been 怎么用?它跟过去完成时是一样的吗

网友回答

has 是第三人称做主语时have的谓语变形,用于一般现在时态.例如：She has a book.
He has an apple.
It has a leg
而have been 是现在完成时态,是已经完成的动作.例如：