My brother has a car.(改为否定句)怎么改我知道楼下的答案是正确的，但是为什么是 My brother doesn't have a car.而不能改为 My brother hasn't a car.
问题描述：
My brother has a car.(改为否定句)
怎么改
我知道楼下的答案是正确的，但是为什么是 My brother doesn't have a car.
而不能改为 My brother hasn't a car.
答
My brother has no car.
答
My brother doesn't have a car.
这里需要助动词 do
my brother 是第三人称单数 所以用 does
因为否定 所以要用 doesn't
答
因为有 Have 要用助动词 does
答
My brother doesn't have a car.
答
My brother doesn't have a car.
因为 在由have作谓语的句子变疑问句或否定句时,在美式英语中,无论何种情况,都要借助于助动词do或does 所以不能改为 My brother hasn't a car.