1、一般情况在动词后加s；
2、一般以 ch，sh，s，o，x结尾的动词后加es；
3、以辅音字母加y结尾的动词，一般先将y变为i，再加es；
4、以元音字母加y结尾的动词后加s。
扩展资料
例句：
Children must be taught the difference between right and wrong.
必须教儿童分清是非。
I hope we have taught our children to know right from wrong.
我希望我们教给了孩子分辨是非的能力。
The database could be used as a teaching resource in colleges.
数据库可以用作大学里的`一种教学辅助手段。
Does the quality of teaching depend on class size?
教学质量取决于每个班的人数吗？
He was put off science by bad teaching.
教学不好使他失去了对理科的兴趣。
