I will go to school tomorrow ---- I will not go to school tomorrow,
He will buy a book -------He won't buy a book
She is going to watch TV-----She is not going to watch TV(这种也是一般将来时）
It will be rainy ------ It won't be rainy
You are going to read a book ---- You aren't going to read a book
The keys will be taken away--------The keys won't be taken away
I shall have lunch later------I shall not have lunch
I shall play football-------I shan't play football (shall not缩写shan't 当主语是我时可以will或shall
It is going to rain-----It isn't going to rain
I'll be a teacher-----I won't be a teacher
反正将来时就是 主语+will（我可以用shall）+动词原型 否定在will后面+not
另外 主语+be going to+动词原形也是 否定在be后面否定