在英语语法当中,什么情况下动词后面加“S”?
问题描述：
在英语语法当中,什么情况下动词后面加“S”?
答
正确的答案是：当一般现在时第三人称单数作主语时,肯定句式中的谓语动词后面要加-s,即三单式.而在否定句式和疑问句式中,由于使用了助动词 does,谓语动词要用原形.看下面的例句：He does his homework in the evening.He doesn't do his homework in the evening.Does he do his homework in the evening?英语动词的使用确实需要注意很多细节,不能一概而论.