He must stay at home.句中的stay要加s吗?为什么?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/25 16:53:33

must 是情态动词,后跟动词原形,所以stay 没有必要加s

He must stay at home. 他必须呆在家.

祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!
再问：那为什么Does he have a stomach ache? 是用have,不是用has的?
再答： Does he have a stomach ache? 是一般现在时，其结构： do/ does + 主语+动词原形，does已经是第三人称单数了，所以后面的动词用have

He must stay at home.句中的stay要加s吗?为什么? stay at home为什么要加at? so he must stay in bed for a week.句中stay为什么不加s I stay at home on Saturdays 为什么星期六加s I must stay at home.he （）stay at home ,too Must he stay at home and look after the baby?(改为同义句) It's (raining) hard .So I (must) stay (at home). I usually stay home at night.stay home 中home前面为什么不用加at? 为什么要用stay at home? He likes to stay at home.(改为否定句） at home,likes ,he ,stay ,to ,连成英语句同义句 she must stay at home she ——— ———stay at home