Mr.Smith has a red hat.改为一般疑问句和否定句

Does Mr.Smith have a/any red hat?
Mr.Smith doesn't have a/any red hat.
或Mr.Smith hasn't a/any red hat
变一般疑问句把句中的情态动词can could will may might 等和
助动词：do等帮助够成完整的谓语动词的词
以上两种词提前 其余照抄,注意时态．
如没有以上两种就自己加相应时态的助动词do/did/does
此句只有实意动词 have 没有助动词和情态动词
因为是一般现在时 而且是复数所以在句首加DO
否定也就是把情态动词或助动词加上not该为否定时 如没有情＊和助就按相应的时态和人称在实意动词前加上don't/dosen't/didn't
这句的否定就应为

Does Mr. Smith have a red hat?
Mr Smith doesn't have a red hat

Mr. Smith doesn't have a red hat.
Does Mr. Smith have a red hat?

Does Mr. Smith have a red hat?
Mr. Smith doesn't have a red hat.
Mr. Smith never have a red hat