teach三单形式为teaches，ing形式为teaching
例句
1、
Teach them to voice their feelings.
训练他们敢于表达自己的感受。
2、
One Sunday he began trying to teach the two puppies to walk on a leash.
一个星期天，他开始尝试训练两只小狗系上皮带走路。
3、
Wittgenstein also liked to talk about learning and teaching.
维特根斯坦也喜欢谈论学习和训练
teach的三单形式与ing形式
teach的三单形式是teaches，teach的ing形式是teaching。例如：
Mr. Wang teaches us English. 王老师教我们英语。
He is teaching the children to skate. 他正在教孩子们滑冰。
动词的三单形式一般在词尾加s。例如：like—likes
以ch， sh， o等结尾的加es。例如：catch—catches
