动词原形 teach
现在进行时 is、are teaching 被动态 is、are being taught
例句：Mr Wu is teaching his students how to read this new world now.
The students are being taught how to read this new world now
过去进行时 就把上面的 is、are 改为 was 、were 其余都不变
现在完成时：have/has taught 被动态：have、has been taught
例句 ：Mr Wu has taught us English for 3 years.
We have been taught to learn English by Mr Wu for 3 years.
还有一些其他的时态等等再告诉你~