Does he work for us?

　　Yes, he does.

　　No, he doesn't

　　What does he do for us?

　　He works for us.

一般过去时

　　be动词＋行为动词的过去式

　　否定句式：在行为动词前加didn't，同时还原行为动词，或was／were＋not；

　　was或were放于句首；用助动词do的过去式did提问，同时还原行为动词

　　例如： Did he work for us?

　　He didn't work for us.

　　He worked for us.

一般将来时

　　am／are／is＋going to＋do 或

　　will／shall＋do

　　am/is/are/about to + do

　　am/is/are to + do;

　　一般将来时的表达方法

　　be going to +动词原形

　　be +不定式,be to+动词原形,be about to ＋动词原形

　　be able to +不定式

　　be about to+动词原形

　　will + 动词原形；

　　例如：He is going to work for us.

　　He will work for us；

　　He is coming.这是特殊的用一般现在时 表达 将来时态 的例子！！

过去将来时

　　be（was，were）going to+动词原形

　　be（was，were）about to+动词原形

　　be（was，were）to+动词原形

　　肯定句：主语+be（was，were）going to+动词原形～.

　　否定句：主语+be（was，were）not going to+动词原形～.

　　疑问句：Be（Was，Were）+主语+going to+动词原形～？

　　肯定句：主语+would（should）+动词原形～.

　　否定句：主语+would（should）not+动词原形～.

　　疑问句：Would（Should）+主语+动词原形～？

　　He would work for us.