a many of与many的区别我记得好像一个后面加单数,一个后面加复数

a many of与many的区别我记得好像一个后面加单数,一个后面加复数 a lot of 与many的区别 many与lots of 的区别 many thousand ,many thousand of 与 many thousands of 的区别是什么? a mass of与a mount of与many of的区别 many a与such a的区别 a good many ,a lot of,a great deal of,a great many of 的区别 large numbers of与many,lots of,a great quantity of的区别 many 与many a 的区别什么时候用many?什么时候用many （除了单、复数的区别） a great many与a great many of的区别是什么新概念第二册上说a great many是形容词短语,a great many of是代词短语. 我不明白两者有多少区别而这两者和 a great number of又有什么区别呢?它又算什么短语? too much,a number of,plenty of与a good many的区别 a great number of与a good many of的区别 many 和a good many的区别 many 和 many a 的区别是什么? many 和many a 的区别 many thousands of 与thousands of 的区别 独立主格的用法many of which与 many of them的区别 much many a lot of lots of的区别!