用英语说:他是小明并变成否定句

He is xiaoming.
否定：He is not xiaoming.

He isn't Xiaoming

He is Xiaoming.
He is not Xiaoming.(不要用isn't)

He is xiaoming. 否定句: He is not xiaoming.

He is xiaoming.
He is not xiaoming.

他是小明:He is Xiao Ming.
否定：He is not Xiao Ming.
LZ:1,2楼的是错的,小明是个名字,姓与名的首字母均为大写.
我是正班的1