Question

I have brothers and sisters (改为否定句)

Answer 1

Ido not have brothers and sisters.改为否定句时，如果句子中没有be动词，就在主语后面加助动词，加not，如果有be动词，直接在be动词后面加not就可以了

Answer 2

I have no brothers and sisters.或I don't have brothers and sisters

Answer 3

I don't have any brothers or sisters.

Answer 4

I have brothers and sisters (改为否定句)方法一：I have not brothers or sisters.方法二：I don't have brothers or sisters.