This is not an egg.
Is this an egg?
Yes,this is.
No,this isn't.
That is not Tom.
Is that Tom?
Yes,that is.
No,that isn't.
It is not a desk.
Is it a desk?
Yes,it is.
No,it isn't.
否定句的變法：：（1）若句中有系動(dòng)詞（am,is,are)的,直接在后面加not
（2）若句中沒有系動(dòng)詞的 在動(dòng)詞后面直接加not.
一般疑問句的變法：（1）若句中有系動(dòng)詞（am,is,are)的,直接將系動(dòng)詞提前,再將主動(dòng)詞,既實(shí)意動(dòng)詞變?yōu)橐话阈问?例如：My name is Gim Tadder 變?yōu)橐话阋蓡柧浼仁牵篒s your name Gim Tadder?（2）若句中沒有系動(dòng)詞的,在句前家do,例如：I like reading books.變?yōu)?Do you like reading books?
希望能夠幫到樓主