肯定句speak复数加s吗

Question

肯定句speak复数加s吗

Answer 1

1.speak 是动词,动词在主语为第三人称单数（他、她、它）,时态为一般现在时的情况下,在肯定句中,就要在动词后面加s.注意其中有少数情况三人称单数是加es,如go－goes ,do-does,watch(观看)--watches.
eg:
1)He often goes to school by bike.
2)Mike does his homework very carefully.
3)He watches TV all day,while his wife does everything.
2.若不是肯定句,比如说否定句或疑问句,就要在实义动词前加上助动词do ,通过do进行变化:
1) Does he often go to school by bike?
2) Does Mike do his homework very carefully?
3)He doesn't do anything at home.