有很多相同之处可以说：have much /a lot in common
有一些共同之处可以说：have something in common
没什么共同之处可以说：have little /nothing in common
以上 均为正确表达.
have a little in common
have a few in common
have few in commo
have many in common?以上均为错误
另外尚可说：have nothing in common（毫无相同之处）