Question

How many are there green birds?与How many green birds are there?请问哪种表达是正确的？

Answer 1

从语法角度来说，两种表达都正确，但习惯上使用第二种，即How many green birds are there?这是因为 how many后紧跟可数名词复数，there be句型的疑问句要用倒装句序。

Answer 2

How many语法的基本句型结构是：How many +可数名词的复数形式+ are + there +地点/时间状语+？
所以，你所给的句式里面，第二句是对的。
以上，供参考

Answer 3

第二种是对的。因为there are 可视为倒装句句首，提问时要放后面。

Answer 4

there be句型的特殊疑问句，对主语数量提问用how many或how much

当主语是可数名词(无论单复数)，用：
How many +可数名词复数 + are there + 地点？
所以How many green birds are there?正确

Answer 5

How many green birds are there?是正确的