英语一般现在时动词实义动词时的用法

主语第三人称单数谓语动词要加-S/-ES，其中能S，X ，CH ，SH， O 结尾加-ES，辅音字母+Y 结尾，把Y 改为I 再加-ES，，其余的直接加s，如：
He studies at a Middle schol.
I often watches TV at the weekend.
She usually carries water for him.

其余人称谓语动词不变，如
I/You/we /They study at a Middle School.