teach的三单形式与ing形式

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