be going to一般将来时句式变化(肯定句,否定句,疑问句及回答

原句：He is going to play football.
否定句He isn't going to play football.
疑问：Is he going to play football?
回答：Yes,he is./No,he isn't.它们的结构be not going to (否定句)be +主语+going to ...(一般疑问句）Yes， 主语+beNo, 主语+be not