therehavebeen和therehasbeen是怎么用的是therehavebeen+可数名词复数；therehasbeen+可数名词单数或不可数名词吗如therehavebeenmanybooksabouthistorytherehasbeenlifeonearthformillionsofyears怎么感觉

　　therehavebeen和therehasbeen是怎么用的

　　是therehavebeen+可数名词复数；therehasbeen+可数名词单数或不可数名词吗

　　如therehavebeenmanybooksabouthistory

　　therehasbeenlifeonearthformillionsofyears

　　怎么感觉主语是there后面谓语动词都应该用has呢