第一章　英文文法的最基本规则

1-7规则（７）：英文问句要有助动词

我们先看看以下的英文句子，这些都是错的：
＊ How many books you wrote？
＊ How many sons you have？

正确的句子是：
Why do you drink so much water？
How many books did you write？
How many sons do you have？

绝大多数的英文问句子是一定要有助动词，以下全是正确的英文问句，你可以看出每一句的助动词吗？

Do you love me？
Did you go to school yesterday？
How many books do you have？
How much money does he have？
Why don’t you go back home？
Do you like to swim？
Can you play violin？
Will you go home tomorrow？
Would you give me a call？

当然啦，一旦动词是verb to be，我们又不需要助动词了，以下都是正确的英文问句：
Are you a teacher?
Is he a student?
Is Mr. Chang your father?
Were your mother and father in England last year?

专门替中国人写的英语语法汇总