be going to
1.be going to 表示将要发生的事或打算、计划、决定要做的事情。
2.肯定句：be going to +动词原形，如：Jim is going to play football. 否定句：be not going to +动词原形，如：Jim is not going to play football. 一般疑问句：把be动词调到句首，如：Is Jim going to play football? 特殊疑问句：疑问词+be+主语+going to+动词原形？如：What is Jim going to do? 疑问词当主语时：疑问词+be+going to+动词原形？如：Who is going to play football?