★变疑问句将be动词移到句首

　　Are you going to make a bookcase?

　　Are they going to paint it?

　　Is the father going to give the bookcase to his daughter?

　　★变否定句在be动词后面加not

　　I am not going to make a bookcase.

　　They are not going to paint it.

　　The father is not going to give the bookcase to his daughter.

　　★肯定回答及否定回答

　　Yes, I am. / No, I am not.

　　Yes, they are. / No, they are not.

　　Yes, he is. / No, he is not.