how many后面跟复数不跟单数。how many中文翻译为“有多少”、“多少”，常用来询问数量，可修饰可数名词复数，它的句式为How many+复数名词+一般疑问句。
how many的中文含义及双语例句
how many含义为有多少;多少。后面接复数名词。例句有：
1、How many countries took part in the last Olympic Games?
有多少国家参加了上届奥运会？
2、How many candidates are standing for election?
有多少候选人参加竞选？
3、How many days did you take off?
你休了几天假？
4、Please let me know how many are coming, if any.
请告诉我，如果有人要来的话，有多少？
5、Whether we need more food depends on how many people turn up.
我们是否需要更多的食物，这要视到场人数而定。
6、How many times do I have to tell you not to do that?
我得跟你说多少回不要做那种事？
7、How many people does the company employ?
这个公司雇用了多少人？
8、How many driving lessons have you had so far?
你到目前为止上过多少节驾驶课了？
9、How many people are they going to try and squash into this bus?
他们打算把多少人塞进这辆公共汽车？
10、How many tickets do you have left?
剩下的票你还有多少张？
11、How many vehicles were involved in the crash?
这次撞车事故涉及多少辆汽车？
12、How many sugars do you take in coffee?
您在咖啡里放几块方糖？
